# Finite Math Examples

Write as an equation.
Interchange the variables.
Solve for .
Rewrite the equation as .
Add to both sides of the equation.
Divide each term by and simplify.
Divide each term in by .
Cancel the common factor of .
Cancel the common factor.
Divide by .
Replace the with to show the final answer.
Verify if is the inverse of .
To verify the inverse, check if and .
Evaluate .
Set up the composite result function.
Evaluate by substituting in the value of into .
Combine fractions with similar denominators.
Reduce the expression by cancelling the common factors.
Cancel the common factor.
Rewrite the expression.
Divide by .
Evaluate .
Set up the composite result function.
Evaluate by substituting in the value of into .
Simplify each term.
Apply the distributive property.
Cancel the common factor of .
Cancel the common factor.
Rewrite the expression.
Cancel the common factor of .
Cancel the common factor.
Rewrite the expression.
Combine the opposite terms in .
Subtract from .