SOLUTION: If f(x) and f^-1(x) are inverse functions of each other and f(x) = 2x+5, what is f^-1(8)?

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Question 1039164: If f(x) and f^-1(x) are inverse functions of each other and f(x) = 2x+5, what is f^-1(8)?
Answer by josgarithmetic(39623) About Me  (Show Source):