Solve the system: x−y=0x - y = 0x−y=0 and x+y=4x + y = 4x+y=4.
x=1,y=3x=1, y=3x=1,y=3
x=2,y=2x=2, y=2x=2,y=2
x=3,y=1x=3, y=1x=3,y=1
x=0,y=4x=0, y=4x=0,y=4