Multiply each term in by .

Simplify .

Apply the distributive property.

Multiply.

Multiply by .

Multiply by .

Apply the distributive property.

Multiply.

Multiply by .

Multiply by .

Multiply by .

Subtract from both sides of the equation.

Subtract from .

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

Solve for z -(5z+12)=18