Here are the steps in getting the inverse of the given function:
1. Replace f(x) with y.

2. Switch x and y.

3. Isolate y.
Add 7 on both sides of the equation.

Divide both sides of the equation by 2 to remove the 2 in 2y.


4. Replace y with the symbol for the inverse of f(x).

The inverse of the given function is (x + 7)/2 as shown above.