Answer:
[tex]x=2\\y=-2[/tex]
Step-by-step explanation:
[tex]-8x-8y=0[/tex]
Solve -8x-8y=0 for x
[tex]-8x-8y+8y=0+8y[/tex]
[tex]-8x=8y[/tex]
[tex]x=-1y[/tex]
[tex]-8x+2y=-20[/tex]
Substitute -1y for x
[tex]-8(-1y)+2y=-20[/tex]
[tex]8y+2y=-20[/tex]
[tex]10y=-20[/tex]
[tex]y=-2[/tex]
Substitute -2 for y
[tex]x=-1y[/tex]
[tex]x=-1(-2)[/tex]
[tex]x=2[/tex]
