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Mathematics 15 Online
OpenStudy (anonymous):

Let f(x) = 5x + 12. Find f^-1(x). A.12x + 5 B.1/5x+12 C.5/x-12 D.x-12/5

OpenStudy (anonymous):

like solving for x in \[5x+12=7\] subtract 12, divide by 2 so your inverse is \[f^{-1}(x)=\frac{x-12}{2}\]

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