Answer:x=-1 y=1
Step-by-step explanation:
-3y+10x=-5
3y-6x=9
Add both equations together
-3y+3y+10x-6x=-5+9
0+4x=-4
4x=-4
Divide both sides by 4
4x/4=-4/4
x=-1
Substitute x=-1 in 3y-6x=9
3y-6(-1)=9
3y+6=9
3y=9-6
3y=3
Divide both sides by 3
3y/3=3/3
y=1