Let f(x) = 7x - 13. Find f-1(x).

A) 13x-7B) 7/x+13C) x+13/7D) 1/7x-13

(c) x+13/7Refer to this link :http://www.mathsisfun.com/sets/function-inverse.html

This is will make you understand how to understand this :)

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