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1-86.
Find f−1(x) if f(x) = 
Change f(x) to y.
Switch all of the x's to y's and all of the y's to x's.
Solve for y.
Find f−1(x) if f(x) =
Change f(x) to y.
Switch all of the x's to y's and all of the y's to x's.
Solve for y.