# Precalculus Examples

,

Since does not contain the variable to solve for, move it to the right side of the equation by subtracting from both sides.

Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.

Simplify the left side.

Simplify each term.

Apply the distributive property.

Simplify.

Multiply by to get .

Multiply by to get .

Simplify by adding terms.

Remove unnecessary parentheses.

Add and to get .

Add and to get .

Move all terms not containing to the right side of the equation.

Move all terms not containing to the right side of the equation.

Since does not contain the variable to solve for, move it to the right side of the equation by subtracting from both sides.

Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.

Add and to get .

Divide each term by and simplify.

Divide each term in by .

Reduce the expression by cancelling the common factors.

Cancel the common factor.

Divide by to get .

Simplify each term.

Reduce the expression by cancelling the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Divide by to get .

Multiply by to get .

Divide by to get .

Remove parentheses.

Remove unnecessary parentheses.

Subtract from to get .

Add and to get .