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28 April, 09:33

What is the solution to the equation?

7 (5 + 9) = 7 · x + 7 · 9

A.

x = 1

B.

x = 5

C.

x = 7

D.

x = 9

+4
Answers (2)
  1. 28 April, 11:34
    0
    B.

    X=5

    7 (5+9) = 7•x+7•9

    (7•5) + (7•9) = 7x+63

    35+63=7x+63

    Subtract 63 from both sides and you will be left with

    35=7x

    Divide each side by 7 (you pretty much just divide 35 by 7)

    And x=5
  2. 28 April, 11:59
    0
    To get the answer we have to solve eq.

    7 (5+9) = 7x+7*9

    7*5+7*9=7x+63

    35+63=7x+63 / - 63

    35=7x / : 7

    5=x

    The correct answer is B.
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