[tex]f(x)=11x-1\\\\y=11x-1\to x=11y-1\ \ \ \ |+1\\\\11y=x+1\ \ \ \ |:11\\\\y=\dfrac{x+1}{11}[/tex]
[tex]Answer:\ f^{-1}(x)=\dfrac{x+1}{11}[/tex]
