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16 March, 14:52

What is 7 (x+6) = 3 (x+9)

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Answers (2)
  1. 16 March, 17:49
    0
    x = - 3.75
  2. 16 March, 18:13
    0
    x = - 15/4

    Step-by-step explanation:

    7 (x+6) = 3 (x+9)

    Distribute

    7x+42 = 3x+27

    Subtract 3x from each side

    7x-3x+42 = 3x-3x+27

    4x + 42 = 27

    Subtract 42 from each side

    4x+42-42 = 27-42

    4x = -15

    Divide each side by 4

    4x/4 = -15/4

    x = - 15/4
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