Question 880732
The idea is that another function g(x) will produce x when the input to g(x) is 2x-1.


{{{highlight_green(g(f(x))=f(g(x))=highlight(2*g(x)-1=x))}}}


Check that line of steps very carefully and try to understand.  When you are comfortable with it, solve for g(x) in the red outlined part.