Answer:
x=13, y=-20
Step-by-step explanation:
x+y=-7
2x+y=6
Subtract x from both sides of the first equation to be left with y=-x-7. Substituting this into the second equation, you get:
2x-x-7=6
x-y=6
x=13
y=-20
I also solved this graphically, which you can see below. Hope this helps!
