Answer:
(1,2)
Step-by-step explanation:
x+2y=5
-2x-y=-4
Multiply the first equation by 2
2(x+2y)=5*2
2x +4y = 10
Add this to the second equation
2x +4y = 10
-2x-y=-4
-----------------
3y = 6
Divide by 3
3y/3 = 6/3
y =2
Now we need to find x
x+2y = 5
Substitute y in
x +2(2) =5
x+4 =5
Subtract 4 from each side
x+4-4=5-4
x =1
