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11 March, 10:50

What value of x makes f (x) = 5 if f (x) = - 2x + 25?

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Answers (2)
  1. 11 March, 14:02
    0
    5 = - 2x + 25

    -20 = - 2x

    20 = 2x

    x = 10

    The answer is 10
  2. 11 March, 14:21
    0
    Set the f (x) equation equal to 5 so that f (x) = - 2x + 25 = 5, then subtract 25 from both sides so that - 2x = - 20 then divide by 2 and solve for x which should give you 10
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