Move all terms not containing z to the right side of the equation.
Subtract 23 from both sides of the equation.
Subtract 23 from -4.
Divide each term by -3 and simplify.
Divide each term in -3z=-27 by -3.
Cancel the common factor of -3.
Cancel the common factor.
Divide z by 1.
Divide -27 by -3.
Solve for z 23-3z=-4