Answer:
y=4. x=-3
Explanation:
7x+2y=-13. add or minus each other
+ -7x+y=25
3y=12. solve it to get y=4( divide by 3 on both sides)
knowing that y is 4, solve one of the equations
-7x+4=25. -4 on both sides
-7x=21. divide by -7x on both sides
x=-3
therefore y=4 and X=-3