Solve for z.z - 12 = -9
Solve for z:-z - 12 = -9z = ?Inverse Operation-9 + 12 = z-9 +12 = 3z = 3Check:-z - 12 = -9z = 33 - 12 = ?3 - 12 = -9Correct!z = -9
z - 12 = -9Inverse operation ( + 12 to both sides)z = -9 + 12z = 3z would equal 3