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28 August, 00:28

What is the solution: - 3 (x+4) = 4 (x-10)

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Answers (2)
  1. 28 August, 00:31
    0
    x=4

    Step-by-step explanation:

    -3 (x+4) = 4 (x-10)

    -3x-12=4x-40

    +3x. + 3x

    -12=7x-40

    +40. + 40

    (28) / 7 = (7x) / 7

    4=x
  2. 28 August, 00:48
    0
    4 = x

    Step-by-step explanation:

    -3 (x+4) = 4 (x-10)

    Distribute

    -3x-12 = 4x - 40

    Add 3x to each side

    -3x - 12 + 3x = 4x + 3x-40

    -12 = 7x-40

    Add 40 to each side

    -12 + 40 = 7x - 40+40

    28 = 7x

    Divide each side by 7

    28/7 = 7x/7

    4 = x
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