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26 February, 22:53

Solve for x. 3 (x + 1) + 4 (x - 3) = 12

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Answers (2)
  1. 27 February, 00:32
    0
    3x+3+4x-12=12

    3x+4x-9=12

    3x+4x=21

    7x=21

    x=3
  2. 27 February, 01:20
    0
    X=3

    7X - 9=12

    7X=12+9

    7X/7=21/7

    X=3
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