Add to both sides of the equation.

Add and .

Subtract from both sides of the equation.

Subtract from both sides of the equation.

Subtract from .

Subtract from .

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Cancel the common factor of and .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Divide by .

Solve for y 3z+2y+2a=4z-2y-2a