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Given f(x) = -x - 8 and f(x) = -10, find x. (What was the input?)

User Debop
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{ \qquad\qquad\huge\underline{{\sf Answer}}}

Here, we need to find the input that will result in f(x) = -10

So, let's equate those two ~


\qquad \sf  \dashrightarrow \: - x - 8 = - 10


\qquad \sf  \dashrightarrow \: - x = - 10 + 8


\qquad \sf  \dashrightarrow \: - x = - 2


\qquad \sf  \dashrightarrow \: x = 2

So, the input as x = 2 to get the given results.

User Amgad Fahmi
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