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

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Question 1123233: Find x if f(x) = 2x + 7 and f(x) = -1.
Answer by ikleyn(52748) About Me  (Show Source):
You can put this solution on YOUR website!
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From the condition


2x + 7 = -1


2x = -1 - 7


2x = -8


x = -4.