Learn more abut equations, click;. Given that, The sum of nine and a number is. the sum of a number and nine is doubled the result is >if the sum of a number and nine is doubled the result is. The firm collects and processes more than 1,500 financial advisor survey responses each year, Bing Waldert, managing director of U. the difference of thirteen and six, multiplied by a number 7. The two operations are multiplication and addition. ) twenty less than a number m - 20. How do you write the phrase as an algebraic expression: the sum of 9. The sum of nine and a number, x, is three. An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =. The sum (use plus symbol) of twice a number and 3 3 can be written as 2x+3 2x + 3. The calculation performed is called addition or summation. asked by Anonymous May 26, 2021 3 answers The sum tells you that you are adding something. SOLUTION: The sum of nine and a number, x, is three The product of nine. Their sum is negative four. The quotient of a number, n, and two is five. Let the number be x, therefore, 9 + x = 4 x = 4 - 9 x = -5 Hence, the equation is 9 + x = 4 and the number is -5. A certain positive number is equal to nine-tenths of the sum of the number and its reciprocal. SOLUTION: Three times the sum of a number and nine. Answer Sample Set B Sometimes the structure of the sentence indicates the use of grouping. The Summation (Sum) Calculator is used to calculate the total summation of any set of numbers. Then, well solve it to get the answer. It is the first composite lucky number. “6 times the sum of the number n and 3”. The sum of 9 and a number is less than 12. The sum is the total of all data values added together. a number and 9 —> an unknown number, which we will call x, and 9. 16: One number is three more than three times. The words product and sum are always used with the word AND indicating which two values are multiplied or added. Two ninths of a number is eleven. ) the sum of sixteen and three times a number minus four. So twice a number means 2x 2x. The Summation (Sum) Calculator is used to calculate the total summation of any set of numbers. If the sum happens to be greater than 9 then repeat the process of obtaining a digital sum until the result is 9 or smaller. Write an algebraic expression to represent the sum of five times a number and 17 1:5x+17 2: 5x-17 3: 5 (x+17) 4: 5+17x. This can be expressed by the general notation of congruence $$10/equiv 1/pmod9$$ (that expresses that these two numbers give the same remainder when dividing by $9$). For this problem, you would have: 9x + 6 = 7 You can solve this equation to find the missing number, x, using inverses operations as follows: 9x + 6 - 6 = 7 - 6 9x = 1 9x/9 = 1/9 x = 1/9 The missing number is the fraction 1/9. six times the sum of nine and a number A 2-column table with 5 rows. ) nine times a number 9x. The sum of the digits of a 3-digit number is three times the sum of the digits of a 2-digit number. ) five times the difference of a number and one 5(x-1). First, we need to get all of the like terms on each side of the equal sign. 3(x+9)=6 (original equation) 3x+27=6 (distribute) 3x=-21 (subtract 27 from both sides) x=-7 (divide both sides by 3). The product of 9 and y; The sum of 8x and 3x; The sum of 13x and 3x; The quotient of y and 3; The quotient of y and 8; Eight times the difference of y and nine; The number of girls in a second-grade class is 4 less than the number of boys. We have established that a number = x. The sum of nine and a number is four. the quotient of 20 and x, increased by seven 9. Here is a variable expression: #3x+7#. The sum of 9 times a number and 6 equals 4. Which of the following inequalities expresses the solution? See answers Advertisement devishri1977 Answer: x + 9 < 12 Step-by-step explanation: Let the unknown number = x Sum of 9 and x : x + 9 x + 9 < 12 Advertisement MommaBear2012 Answer: 9+x<12 Step-by-step explanation: add 9 to an unknown number. Chef is very friendly and answered all questions. What is a number? A number is a mathematical object used to count, measure, and label. Let the number be num. The sum (use plus symbol) of twice a number and 3 3 can be written as 2x+3 2x + 3. The sum of a number times 6 and 8 is 7. How do you write the phrase as an algebraic expression: the. The is tells us that 6 is the answer. six times the sum of nine and a number 6. Lets use the variable, x , to represent the unknown number. x + 9 = the sum of a number and 9. 2 + 4 + 9 = 15. Writing Expressions Flashcards. What are you adding? 9 times a number and 6 ===> 9x + 6 equals ====> = 9x + 6 = 4 so, just translate the English into Math. Lets use the variable, x , to represent the unknown number. Find the numbers. The symbols 17 + x = 68 form an algebraic equation. SOLUTION: Three times the sum of a number and nine SOLUTION: Three times the sum of a number and nine Word Problems: Translating English into Algebreze Solvers Lessons Answers archive Click here to see ALL problems on Human-and-algebraic-language Question 406665: Three times the sum of a number and nine Answer by mananth (16256) ( Show Source ):. So, the sum of nine and x =9+x What is a number? A number is a mathematical object used to count, measure, and label. How do you write seven less than the product of 4 and a number is 9? 4x - 7 = 9 How do. The firm collects and processes more than 1,500 financial advisor survey responses each year, Bing Waldert, managing director of U. 8 (x + 9) = 7. research at the firm, said Wednesday during a webinar on the . Use the variable b for the unknown number. ) half a number plus two. How do you translate 5 less than a number into a. Twice a number less eight is equal to one more than three times the number. The sum of nine times a number and six is seven>The sum of nine times a number and six is seven. The expression is as follows: 2x + 9 Upvote • 0 Downvote Add comment Report. A sum is the total amount calculated by addition of those numbers. One number is eight more than twice another. One number is ten more than twice another. Answer by bucky (2189) ( Show Source ): You can put this solution on YOUR website! If X is the unknown number, then the sum of that number and 8 is represented as X + 8. For example, the phrase. What numbers have 9 as a factor? 9, 18, 27, All numbers whose digital sum is 9. can be written as the expression. An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =. ) the quotient of five and a number 5 ÷ p. Define variables:Let x = larger number and y = smaller numberResulting system of equations:x + y = Sumx − y = DifferenceSolve the system of equations for x (larger. 4+5=9 9 is the sum How do you get the answer 9 by using four 4s? You can get 9 with the sum 4 + 4 + (4/4) = 9 What is the homophone. The sum of nine and a number is four into an equation and solve. Three times the sum of a number and 9 is 6. You can solve this equation to find the missing number, x, using inverses operations as follows: 9x + 6 - 6 = 7 - 6. Nine is a composite number, its proper divisors being 1 and 3. Nine times the sum of a number and 3 is 2. It is 3 times 3 and hence the third square number. Who are the experts? Experts are tested by Chegg as specialists in their subject area. 3 (x+9)=6 (original equation) 3x+27=6 (distribute) 3x=-21 (subtract 27 from both sides). Delivery & Pickup Options - 16 reviews of Noval Kitchen Fantastic dim sum and Hong Kong style food. Take 9 and add any number to it. “10 times the sum of the number n and 8”. The sum of nine and a number is four into an equation and solve. Any symbol what is not a digit, for example, a space, a comma, a semicolon, etc, serves as a separator. The sum of 9 times a >Translate the sentence into an equation. Then, we multiply it by 3: 3 * (x + 9). Six times the sum of nine and the number x=6 (9+x) Six times the sum of nine and the number x =54+6x. Explanation: Let n represent a number. The sum of the squares of two digits of a positive integral number is 65 and the number is 9. Click here to see ALL problems on Human-and-algebraic-language. If eight is added to the product of nine and the numerical number, the sum is seventy-one. ) twenty less than a number m - 20. Explanation: when x= (a number) then you -5 you find 5 less than a number therefore x-5 is the answer. Use the variable b for the unknown number. The product means that you need to multiply the three numbers together. Why is the sum of the digits in a multiple of 9 also a multiple of 9?. a number decreased by ninety-two. Replace “a number” with the variable, n. Column 2 is labeled Replace with entries 6, times, (+), 9, n. Answer by bucky (2189) ( Show Source ): You can put this solution on YOUR website! If X is the unknown number, then the sum of that number and 8 is represented as X + 8. the sum of a number and 9: n + 9 is doubled 2 (n + 9) the result is 2 (n + 9) = three less than the number 2 (n + 9) = n - 3 Now can you solve for n? Upvote • 0 Downvote Add comment Report Still looking for help? Get the right answer, fast. The sum of 9 times a number. Took my Chinese in-laws and food was authentic and fresh. Answer Practice Set A Twice a number less eight is equal to one more than three times the number. If x is 2, then the expression 9 + x has a value of 11. the sum of five times m and n Solution There are two operation words: times tells us to multiply and sum tells us to add. To do this, we will first subtract 1 from both sides: 6x + 1 - 1 = 5x - 1, which gives us 6x = 5x - 1 Next, we will subtract 5x from both sides: 6x - 5x = 5x - 5x - 1, giving us x = -1. Let b represent the number of boys. “6 times the sum of the number n and 3”. the sum of ten times a number and 12 8. What are you adding? 9 times a number and 6 ===> 9x + 6 equals ====> = 9x + 6 = 4 so, just translate the English into Math. Lets look at some examples of writing algebraic equations. of 9 and the numerical >Solution: If 8 is added to the product of 9 and the numerical. The sum (use plus symbol) of twice a number and 3 3 can be written as 2x+3 2x + 3. Column 1 is labeled Key Words with entries six, times, the sum of, nine, a number. 9+4= x; -5 4+x=9; -5 9-x=4; -5 4+x= 9; 5 9+x= 4; -5. Then, we multiply it by 3: 3 * (x + 9). The expression 9 + 8 represents a single number (17). This calculator has 1 input. In this case, that means that the nine less than, which is first in the English, actually needs to be last in the math. The sum of nine and a number is four. The sum means that you need to add the three numbers together. Ordered Thai seafood soup, radish cake dim sum, Har gow shrimp dumplings, wonton soup noodles, spring rolls, etc everything was fantastic. Solution: Let the number = x. Click here to see ALL problems on Human-and-algebraic-language. This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them. six times the sum of nine and a number A 2-column table with 5 rows. A sum can be used to simply calculate a total amount such as, counting the number of people on each floor of a building then adding those numbers together to get the total amount of people in the building. Then, it easily follows from the property of these congruences that they behave like equality with respect to addition and multiplication, that $10^n/equiv 1^n=1. Sum = x 1 + x 2 + x 3 + + x n. An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =. Use this calculator to find the sum of a data set. Most questions answered within 4 hours. 2 × 4 × 9 = 72. ) the sum of a number and twelve. Quick Sum Calculator This online calculator sums up entered numbers. SOLUTION: The sum of nine and a number, x, is three The product of nine and a number, n, is negative thirty-six. Negative numbers Calculator & Problem Solver Understand Negative numbers, one step at a time Step by steps for fractions, factoring, and prime factorization Enter your math expression x2 − 2x + 1 = 3x − 5 Get Chegg Math Solver $9. Answer Consecutive integers are integers that immediately follow each other. What numbers have 9 as a. Example 2: Write each sentence as an algebraic equation. Similarly, when we describe an expression in words that includes a variable, were describing an algebraic expression (an expression with a variable). The sum of nine and a number is four. Take 9 and add any number to it. Example 2: The difference of triple a number and 5 5 Answer: Let variable y y be the unknown number. Find three consecutive integers whose sum is - 9?-2 + -3 + -4 = -9. Ordered Thai seafood soup, radish cake dim sum, Har gow shrimp dumplings, wonton soup noodles, spring rolls, etc everything was fantastic. Writing Algebraic Equations. Write the phrase as a variable expression the product of 9 and a number? The expression is 9*x. The sum of six consecutive integers; n = first integer of the six; The sum of the digits in a 2 digit number is 5. Translating Word Problems: Examples. Step 1: Translate the word problem into an equation Word problem: The sum of nine and six-tenths and a number is thirteen and two-tenths. The sum of two numbers is 9 and the sum of their squares is 41 What is the larger number? 5 5+4 = 9 52+42 = 41. Some examples of consecutive integers are:. Solved Translate into an equation and solve. And thats our expression! Upvote • 0 Downvote Add comment. What is the number? A 1. In mathematics, summation is the addition of a sequence of any kind of. Delivery & Pickup Options - 16 reviews of Noval Kitchen Fantastic dim sum and Hong Kong style food. The sum of a number and 9 is x + 9 Twice the sum of a number and 9 would be: 2 × (x + 9) Now so far, this is only called an algebraic expression because while it contains a variable, it has not be made into an equation because it is not set equal to anything. One number is 9 more than twice another number. Look closely at these phrases using the four operations: the sum of a and b. the sum of nine and a number 9 + x fourteen decreased by a number p 14 - p seven less than a number t t - 7 the product of 9 and a number n 9n thirty-two divided by a number y 32/y five more than twice a number 2n + 5 the product of a number and 6 6n seven divided by twice a number 7/ 2n three times a number decreased by 11 3n - 11. We need to add nine to our previous equation: 2x. x+9 this represents the sum of a number and 9 Three times is multiplying x + 9. The correct option is B 1119The sum of first 9 prime numbers is 100, and so their average is 1119. Now we want to multiply that sum by 3, so first we put x+9 in parentheses to indicate that were multiplying the whole sum (as opposed to just multiplying x or 9): (x+9). This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them (increased,product,decreased,divided,times) Also known as Mathematical phrases. the sum is the answer to an addition problem e. To evaluate this expression when #x = 2# mean to substitute #2# in place of #x# , and find the number (the value). It is because $10$ gives $1$ as remainder when dividing by $9$. asked by Anonymous May 26, 2021 3 answers The sum tells you that you are adding something. In Exercises 1-20, translate the phrase into a mathematical expression involving the given variable. The sum of 9 and a number is less than 12. Two ninths of a number is eleven. 3(x+9) this represents “three times the sum of a number and 9” Answer: 3(x+9) ***IMPORTANT***. ) the quotient of five and a number. How do you write the phrase as an algebraic expression: the sum of 9 and a number? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer VNVDVI Apr 1, 2018 n + 9 Explanation: Let n represent a number. 9 is the second non-unitary square prime (3. The sum of —> Whatever comes AFTER this phrase is adding together. This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them (increased,product,decreased,divided,times) Also known as Mathematical phrases. The sum of 9 times a number and 6 equals 4. Sometimes in math we describe an expression with a phrase. com%2flessons%2fintroductory-algebra%2falgebraic-expressions%2f/RK=2/RS=tDF3VhyYCpAV7uxWzpk64jRVP64- referrerpolicy=origin target=_blank>See full list on chilimath. Hence, Six times the sum of nine and the. In mathematics, summation is the addition of a sequence of any kind of numbers, called addends or summands; the result is their sum or total. the sum of a number and twenty-six. 8 (x + 9) = eight times the sum of a number and 9. The average of the first five odd prime numbers is. ) twice a number decreased by eleven. Now we want to multiply that sum by 3, so first we put x+9 in parentheses to indicate that. 0 (66) Experienced Physics Teacher for Physics Tutoring See tutors like this x = the number x + 9 = the sum of a number and 9 8 (x + 9) = eight times the sum of a number and 9 8 (x + 9) = 7 8x + 72 = 7. Here, we use + for more than, - for less than,. The sum of nine and a number is four into an equation …. To evaluate this expression when #x = 2# mean to substitute #2# in place of #x# , and find the number (the value). 16: One number is three more than three times another. Express the given quantity in terms of the indicated variable. To evaluate a variable expression means to find the value of the expression when the variable is (or variables are) replaced by a number (or numbers). What are facts about dividing by nine? If the sum of the digits of a number is a multiple of 9, the number is a multiple of 9. Put it all together and we have 6x + 1 = 5x Now we can solve our equation. Translate the sentence into an equation. Answer by mananth (16256) ( Show Source ): You can put this solution on YOUR website! 3 (x+9). The expression 9 + 8 represents a single number (17). By multiplying a number with 9, you are making it a multiple of 9, and hence the sum of its digits must be divisible by 9. Write an expression for 8 8 8 8 less than the product of 7 7 7 7 and x x x x . The sum of nine and a number is four. The sum of nine and a number is four into an equation and solve. 8 fewer than the sum of 14 and a number. The sum of nine and the number is then n + 9, as sum denotes addition. Six times the sum of nine and the number x=6(9+x) Six times the sum of nine and the number x =54+6x. Two Numbers with a Sum of 5. Question 406665: Three times the sum of a number and nine. 9+4= x; -5 4+x=9; -5 9-x=4; -5 4+x= 9; 5 9+x= 4; -5 This problem has been solved! Youll get a detailed solution from a subject matter expert that helps you learn core concepts. Five less than two times a Algebra: Equations Solvers Lessons Answers archive Click here to see ALL problems on Equations Question 1095294: The sum of nine and a number, x, is three. Sentence to Equation: We can translate a sentence into an equation by using algebraic operations. Coordinates of B,C and D are respectively. To evaluate a variable expression means to find the value of the expression when the variable is (or variables are) replaced by a number (or numbers). The sum of nine and a number, x, is three. Answer Practice Set A Twice a number less eight is equal to one more than three times the number. Q: The sum of twice a number and half the number is 10. If the sum of the numbers is 129, find both. The firm collects and processes more than 1,500 financial advisor survey responses each year, Bing Waldert, managing director of U. ) five times the difference of a number and one. Eight times the sum of a number and 9 is 7 Follow • 1 Add comment Report 1 Expert Answer Best Newest Oldest Arturo O. b divided into a. The sum of nine times a number, and 8, is equal to eight times the number. The expression 9 + x represents a value that can change. 2t - 29 = 7: Thirty-two is twice a number increased by eight. 32 = 2a + 8: The quotient of fifty and five more than a. The expression is 9*x. Quizlet>Writing Expressions Flashcards. How do you write the phrase as an algebraic expression: the sum of 9 and a number? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer VNVDVI Apr 1, 2018 n + 9 Explanation: Let n represent a number. What you have observed: The sum of the digits of the number added to 9 is always equal to the sum of the digits of the result. What is the algebraic expression for the sum of 9 and a number?. See details Negative numbers problems weve solved. Eight times the sum of a number and 9 is 7 Follow • 1 Add comment Report 1 Expert Answer Best Newest Oldest Arturo O. and in math always translates to additions. an unknown number, which we will call x, and 9. Q: The sum of two numbers is 84, and one of them is 12 more than the other. Negative numbers Calculator & Problem Solver. How do you write an inequality and solve given the sum of nine …. ) the sum of a number and twelve n + 12. The Sum Of Nine And A Number3(x+9)=6 where x is the unknown number. Answer /(3 + 7x = 9 + 5x/) Practice Set A. ) nine times a number. Three times the sum of a number and 9 is 6. Square root of the sum of a number and 9 is 12. the sum of a number and 9 is equal to 7?>What is Twice the sum of a number and 9 is equal to 7?. The sum of nine and a number, x, is three. The sum of nine times a number and six is seven. Find the >Square root of the sum of a number and 9 is 12. Now we want to multiply that sum by 3, so first we put x+9 in parentheses to indicate that were multiplying the whole sum (as opposed to just multiplying x or 9): (x+9). See all allowable formats in the table below. 9 is a Motzkin number. Delivery & Pickup Options - 16 reviews of Noval Kitchen Fantastic dim sum and Hong Kong style food. (9 ×t2) + (t2 +2) OR (9 × t)2 +(t2 + 2) Explanation: The product of 9 and t squared, increased by the sum of the square of t and 2. com/_ylt=AwrFY4Kn3lZkyWIqvdRXNyoA;_ylu=Y29sbwNiZjEEcG9zAzMEdnRpZAMEc2VjA3Ny/RV=2/RE=1683443496/RO=10/RU=https%3a%2f%2fwww. the sum of a number and nine>SOLUTION: Three times the sum of a number and nine. It becomes an equation when we note it is equal to 7. The sum of six times a number and 1 is equal to five times >The sum of six times a number and 1 is equal to five times. five times the sum of m and n 5 ( m + n) To take a sum, we look for the words of and and to see what is being added. the sum of a number and 9: n + 9 is doubled 2 (n + 9) the result is 2 (n + 9) = three less than the number 2 (n + 9) = n - 3 Now can you solve for n? Upvote • 0 Downvote Add comment Report Still looking for help? Get the right answer, fast. Twice a number, decreased by twenty-nine, is seven. It is useful when you need to sum up several numbers but do not have speadsheet program at hand. the sum of nine and a number 9 + x fourteen decreased by a number p 14 - p seven less than a number t t - 7 the product of 9 and a number n 9n thirty-two divided by a number y 32/y five more than twice a number 2n + 5 the product of a number and 6 6n seven divided by twice a number 7/ 2n three times a number decreased by 11 3n - 11. See Answer Question: Write as an equation and solve. 6 I use that example to do my subtraction problem on IXL but it said it was wrong I had to put the number then the letter. Exercises. So 9 + x is an algebraic expression. Put it all together and we have 6x + 1 = 5x Now we can solve our equation. (9 ×t2) + (t2 +2) OR (9 × t)2 +(t2 + 2) Explanation: The product of 9 and t squared, increased by the sum of the square of t and 2. Mathematics Middle School answered The sum of nine and six-tenths and a number is thirteen and two-tenths. The sum of 9 times a number and 6 equals 4. 68 - 17 = x Answer: x = 51, so Jeanne needs $51 to buy the game. 4 Why is it that whenever you multiply any number by nine the digits of the result always add up to a multiple of nine? Example: 9 * 7 = 63; // 6 + 3 = 9 9 * 35 = 315; // 3 + 1 + 5 = 9 elementary-number-theory Share Cite Follow edited May 23, 2017 at 15:29 Shailesh 3,782 155 28 40 asked Oct 4, 2012 at 12:07 Yehuda 41 1 1 2. Now, we write 2 × (x + 9) = 7. 9 Trends That Sum Up the State of RIAs: Cerulli. the difference of 16 and a number, divided by 2 10. if the sum of a number and nine is doubled the result is. the sum of five times m and n Solution There are two operation words: times tells us to multiply and sum tells us to add. This expression is a numerical expression, (also called an arithmetic expression). Each phrase tells you to operate on two numbers. 4 goes on the left side and since it is sum of 9 and another number which means addition and will be on the right side Advertisement Advertisement. 9+4= x; -5 4+x=9; -5 9-x=4; -5 4+x= 9; 5 9+x= 4; -5. The sum is of (a number) and the number 2. the sum of nine and a number. a number added to thirty-six. The Summation (Sum) Calculator is used to calculate the total summation of any set of numbers. Problem Answer: The unknown number is equal to 7. Write an expression for the sum of a a a a and 4 4 4 4 . Example 1: Write each sentence as an algebraic equation. Answer Practice Set A Three more than seven times a number is nine more than five times the number. The sum of 9 and a number is less than 12. The firm collects and processes more than 1,500 financial advisor survey responses each year, Bing Waldert, managing director of U. Sum of 9 times a number and 2 = 9 x + 2. The sum of a number (lets call it x) and 9 can be expressed as: x + 9. The sum of nine and the number is then n + 9, as sum denotes addition. The Summation (Sum) Calculator is used to calculate the total summation of any set of numbers. A digital sum is the sum of all the digits of a number. The sum of nine and a number is four into an equation and solve. Who are the experts? Experts are tested by Chegg as specialists in their subject area. ) half a number plus two (x/2) + 2. The sum of a number (lets call it x) and 9 can be expressed as: x + 9. Take any four digit number and try the trick. Algebraic Expressions Calculator Enter Algebraic Expression below: How does the Algebraic Expressions Calculator work? This calculator builds algebraic expressions based on word representations of numbers using the four operators and the words that represent them (increased,product,decreased,divided,times) Also known as Mathematical phrases. For this problem, you would have: 9x + 6 = 7 You can solve this equation to find the missing number, x, using inverses operations as follows: 9x + 6 - 6 = 7 - 6 9x = 1 9x/9 = 1/9 x = 1/9 The missing number is the fraction 1/9. Summation (Sum) Calculator (High Precision). six times >Write the expression. Translate the sentence into an equation. According to the problem statement: The square root of the sum of number i. Answer:4= 9+x x=-5 Step-by-step explanation: The numbers are put into a standard equation. seven less than a number 4. x and 9 came after “the sum of” so these are the two terms adding together. Sometimes in math we describe an expression with a phrase. ) the sum of a number and twelve n + 12. research at the firm, said Wednesday during a webinar on the. Find the unknown number. Since you can iterate the digit adding process until you get down to a single digit number, the result must be divisible by 9. The sum of a number (lets call it x) and 9 can be expressed as: x + 9. a number decreased by ninety-two. Twice a number. Look for the words of and and to find the numbers. How do you write an inequality and solve given the sum of nine times a number and fifteen is less than or equal to the sum of twenty four and ten times the number? Algebra Linear Inequalities and Absolute Value Inequality Expressions. The less than construction is backwards in the English from the math. The sum of a number and 9 is x + 9 Twice the sum of a number and 9 would be: 2 × (x + 9) Now so far, this is only called an algebraic expression because while it contains a variable, it has not be made into an equation because it is not set equal to anything. The sum of 9 times a number and 3 is 8. In the problem above, x is a variable.