Question

Check my work:
5x-8y=4
x-2y=4
(solve via sub or elimination )
5x-8y=4
-5x+10y=-20
-------------
0+2y=-16

y =-8
so
-8-2y=4
-2y=12 => y =6....correct?

Answer 1

yes i believe its correct

Answer 2

You can check your own work by plugging your answer into the equation and seeing if both sides are equal.