Question 1008867
 2(-x-2y=13)+(2x-5y=1)
 (-2x-4y=26)+(2x-5y=1)
-9y=27
-9y/-9=27/-9
y=-3

2x-5y=1
2x-5(-3)=1
2x+15=1
2x=1-15
2x=-14
2x/2=-14/2
x=-7