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24 October, 19:23

Solve the equation 5 (a - 7) + 11 = 2a - 3 (a + 4) for a

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Answers (2)
  1. 24 October, 20:51
    0
    5 (a - 7) + 11 = 2a - 3 (a + 4)

    5a - 35 + 11 = 2a - 3a - 12

    5a - 24 = - a - 12

    add a to both sides

    5a - 24 + a = - a - 12 + a

    simplify

    6a - 24 = - 12

    add 24 to both sides

    6a - 24 + 24 = - 12 + 24

    simplify

    6a = 12

    divide both sides by 6

    6a/6 = 12/6

    simplify

    a = 2
  2. 24 October, 21:05
    0
    The answer is a equals 6.
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