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8 May, 12:43

Find x if ƒ (x) = 2x + 7 and ƒ (x) = - 1.

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Answers (2)
  1. 8 May, 12:52
    0
    Set them equal to each other

    2x + 7 = - 1

    -7 - 7

    2x = - 8

    x = - 4
  2. 8 May, 13:00
    0
    The answer to this is x = - 4
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