# Precalculus Examples

Subtract from both sides of the equation.

Move the negative in front of the fraction.

Multiply each term by a factor of that will equate all the denominators. In this case, all terms need a denominator of . The expression needs to be multiplied by to make the denominator . The expression needs to be multiplied by to make the denominator .

Multiply the expression by a factor of to create the least common denominator (LCD) of .

Multiply by .

Multiply the expression by a factor of to create the least common denominator (LCD) of .

Multiply by .

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

Rewrite the equation as .

Multiply each term in by .

Multiply .

Multiply by .

Multiply by .

Multiply by .