SOLUTION: Find x if f(x) = 2x + 7 and f(x) = -1.

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Question 534300: Find x if f(x) = 2x + 7 and f(x) = -1.
Answer by fcabanski(1391) About Me  (Show Source):
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f(x)=f(x) so 2x+7 = -1 Subtract 7 from both sides: 2x=-8 Divide by 2.


x = -4