Interchange the variables.
Solve for .
Rewrite the equation as .
Subtract from both sides of the equation.
Solve for and replace with .
Replace the with to show the final answer.
Set up the composite result function.
Evaluate by substituting in the value of into .
Combine the opposite terms in .
Subtract from .
Add and .
Since , is the inverse of .
Find the Inverse x+19