# Precalculus Examples

Step 1
Cancel the common factor of and .
Step 1.1
Factor out of .
Step 1.2
Cancel the common factors.
Step 1.2.1
Factor out of .
Step 1.2.2
Cancel the common factor.
Step 1.2.3
Rewrite the expression.
Step 2
Move all terms not containing to the right side of the equation.
Step 2.1
Subtract from both sides of the equation.
Step 2.2
To write as a fraction with a common denominator, multiply by .
Step 2.3
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Step 2.3.1
Multiply by .
Step 2.3.2
Multiply by .
Step 2.4
Combine the numerators over the common denominator.
Step 2.5
Subtract from .
Step 2.6
Cancel the common factor of and .
Step 2.6.1
Factor out of .
Step 2.6.2
Cancel the common factors.
Step 2.6.2.1
Factor out of .
Step 2.6.2.2
Cancel the common factor.
Step 2.6.2.3
Rewrite the expression.
Step 2.7
Move the negative in front of the fraction.
Step 3
Since the expression on each side of the equation has the same denominator, the numerators must be equal.
Step 4
Divide each term in by and simplify.
Step 4.1
Divide each term in by .
Step 4.2
Simplify the left side.
Step 4.2.1
Dividing two negative values results in a positive value.
Step 4.2.2
Divide by .
Step 4.3
Simplify the right side.
Step 4.3.1
Divide by .