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2 March, 21:32

The sum of two numbers is 82. Their difference is 24. Find the two numbers.

(Use the Substitution Strategy)

-Define the variables and write a System of Equations

-Explain answer in a sentence

-Write a paragraph explaining the steps taken to solve the problem. In other words, justify and explain your steps

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Answers (1)
  1. 2 March, 23:31
    0
    Ur 2 numbers are represented by x and y

    x + y = 82 ... their sum is 82

    x - y = 24 ... their difference is 24

    too bad u have to use substitution, elimination would have been easier

    x + y = 82 ... x = 82 - y ... so sub in 82 - y in for x in the other equation

    x - y = 24

    82 - y - y = 24

    82 - 2y = 24

    -2y = 24 - 82

    -2y = - 58

    y = - 58/-2

    y = 29

    x + y = 82

    x + 29 = 82

    x = 82 - 29

    x = 53

    so ur 2 numbers are 53 and 29
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