If we are to transform this to the inverse function, first we replace f(x) with y,
y = (1/x+1) - 5
Then, we replace all the y's with x and all the x's with y. Such that,
x = (1/y+1) - 5
Then, we solve for the value of y in terms of x in our newly generated equation.
x + 5 = 1/y+1
(x + 5)(y +1) = 1
y + 1 = 1/(x +5)
y = 1/(x + 5) - 1
So, the inverse function,
y = f⁻¹(x) = 1/(x + 5) - 1