# Precalculus Examples

Move the negative in front of the fraction.

Subtract from both sides of the equation.

Combine the numerators over the common denominator.

Subtract from .

Since the expression on each side of the equation has the same denominator, the numerators must be equal.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Move the negative in front of the fraction.

The result can be shown in multiple forms.

Exact Form:

Decimal Form: