Question

what is the solution to the system x-2y=-8 and x-y=13

Answer 1

let's solve for x in the first equation:
x = 2y - 8
Now substitute that into the second equation:
2y-8-y=13
Simplify:
y-8=13

Answer 2

use substitution

Answer 3

Now add 8 to both sides to get y, and then substitute y back into the first equation to get x.