Solve the system of equations 4 x − 3 y = − 12 4x−3y=−12 and 5 x − 5 y = − 5 5x−5y=−5 by combining the equations. ( 4 x (4x − 3 y −3y = = − 12 ) −12) ( 5 x (5x − 5 y −5y = = − 5 ) −5) 4 x 4x − 3 y −3y = = − 12 −12 5 x 5x − 5 y −5y = = − 5 −5 try -9 x x + +-8 y y = =