SOLUTION: I do not know how to solve this problem f(x)= 11x-9 g(x)= x+11 over 9 verify the inverse functions

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To find the inverse of a function, you exchange the dependent and the independent variables, then solve for the dependent variable. Sounds complicated doesn't it? But here's how it's done:
Given the function , find the inverse function
1) Write the function as:
2) Swap the x and y:
3) Solve for y:
4) Write in inverse function form by replacing y with :
Check: Recall that:
= x
Similarly for
1) Write as:
2) Swap the variables:
3) Solve for y:
4) Write the inverse function form:
Check: Recall that
= x