# Precalculus Examples

, ,

Rewrite the equation as .

Multiply by to get .

Add and to get .

Since , the equation will always be true.

Always true

Rewrite the equation as .

Multiply by to get .

Add and to get .

Multiply by to get .

Since , the equation will always be true.

Always true

The ordered pair is a solution to the system of equations.

is a solution