Algebra

The sum of one number and 2 times a second number is 57. The sum of the two numbers is 18

asked by BOb
  1. n + 2s = 57

    n + s = 18

    subtracting the equations will give you s

    substitute back to find n

    posted by Scott

Respond to this Question

First Name

Your Response

Similar Questions

  1. URGENTlast question for Math

    Which word phrase can be used to represent the algebraic expression 4(21+n)? 4 plus the sum of 21 and a number n 4 times the product of 21 and a number n*** 4 times the sum of 21 and a number n 4 less than the sum of 21 and a
  2. maths

    Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3. Details and assumptions The digit sum of a number is the sum of all its digits. For example, 1123
  3. math

    the sum of a number and 3 times that number is 76. what is that number? PLEASE HELP ME I DON'T GET IT!!!!!!!! Mathematics is a language, so translate the English into "math" let the number be x "the sum of a number and 3 times
  4. Grade 8 Math

    Can you write them in Mathematical/numbers form I'll solve them myself. i don't really get it though i have written the first one in mathematical for but i'm not sure if that's right. 1. When six is subtracted from five times a
  5. algebra

    Twice the first number is eleven more than the sum of the other two numbers. The sum of twice the first number and three times the third number is one more than the second number. The second number is equal to the sum of the first
  6. Math

    Directions : write the equation or an inequality 1.The difference of a number C and 17 is more than 33 ? 2.The product of 3 and number X is at most 21 ? 3.The sum of 14 and twice a number Y is equal to 78 ? 4.The difference of 22
  7. math

    can someone check my work please? 1. Seven times a number, added to the sum of the number and eight. 7*x+8 2. A number multiplied by -7 less 11 X*(-7)-11 3. A number multiplied by 9, added to -8 X*9+(-8) 4. 8.7 less than a number
  8. 5th grade

    I need a little help on this worksheet I got... I have an answer but I'm not sure if it is correct. ALGEBRA--- Translate each verbal expression into an algebraic expression. Then, simplify the expression. 1. Two sets of the sum of
  9. Algebra 2

    The sum of 3 numbers is 42 The sum of the first number and the third number +2 = the second number The third number multiplied by 2 is equal to the sum of the first and third number Can someone help me solve this? Questions like
  10. algebra

    One number is 4 times another. If the sum of their reciprocals is 5/36 , find the two numbers. I am total lost on this problem x is a number 4x is another number these should = 5/36 so my equation would be x+4x=5/36 first x i am
  11. maths

    anderly chooses three different whole numbers. The largest number is 3 times the smallest number. The middle number is 3 less than the largest number. The sum of the number is three numbers is greater than 30 and smaller than 35.

More Similar Questions