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20 July, 13:11

For which value of x is the equation 3 (3 + x) = 15 + x true?

A) 1

B) 2

C) 3

D) 4

+5
Answers (2)
  1. 20 July, 13:15
    0
    Step-by-step explanation:

    3 (3 + x) = 15 + x

    3*3 + 3x = 15 + x

    9 + 3x = 15 + x

    3x - x = 15 - 9

    2x = 6

    x = 6/2

    x = 3
  2. 20 July, 13:39
    0
    The answer would be 3, since if 3 (3 + x) is 18 then 15 + 3 would be 18 too.
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