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7 October, 07:45

If 8a + 7b + c = 9, what is - 6c - 48a - 42b

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Answers (2)
  1. 7 October, 07:59
    0
    The correct answer is - 54
  2. 7 October, 08:00
    0
    -54

    Step-by-step explanation:

    8a + 7b + c = 9

    We want - 6c, but we have c in the equation so multiply by - 6

    -6 (8a + 7b + c) = 9*-6

    -48a - 42b - 6c = - 54

    Rearranging the equation

    -6c - 48a - 42b = - 54
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