Find the inverse of the function:

f (x) = 3x + 6

x = - 2

Step-by-step explanation:

Pull out like factors:

-3x - 6 = - 3 • (x + 2)

Solve : - 3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solve : x+2 = 0

Subtract 2 from both sides of the equation:

x = - 2