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12 August, 12:24

If f (x) = - 12x-3, find x for f (x) = 89.

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Answers (2)
  1. 12 August, 14:41
    0
    89 = - 12x - 3

    89 + 3 = - 12x

    92 = - 12x

    -92/12 = x

    -23/3 or - 7 2/3 = x
  2. 12 August, 16:17
    0
    F (89) = - 12 (89) - 3=-1068-3=-1071
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