dekedavidson11 dekedavidson11 11-01-2021 Mathematics contestada x-2y =-4 and 2x+y = 4 x-2y = 4 and 2x+y=-4 O x-2y=-2 and 2x+y=-4 O x-=2 x-2y = 2 and 2x+y = 4