1) x+y+8=0.
2)4x-y-2=0.
3)3x+y-4=0
1) x+y=-8
x+y+8=-8+8
x+y=-8
2)4x-y=2
4x-y-2=2-2
4x-y-2=0
3)6x+2y=8
6x+2y-8=0
3x+y-4=0
1) x+y+8=0.
2)4x-y-2=0.
3)3x+y-4=0
1) x+y=-8
x+y+8=-8+8
x+y=-8
2)4x-y=2
4x-y-2=2-2
4x-y-2=0
3)6x+2y=8
6x+2y-8=0
3x+y-4=0