Question

x-2=-2
-x+2y=1
solve by elimination

Answer 1

from what you have written it looks like it would be y=1/2. Heres how i got it
x - 2 = -2
-x + 2y = 1 the x variable cancels out
0 + 2y - 2 =(-2+ 1)
2y - 2 = -1 add 2 to both sides
+2 +2
2y = 1 divide by 2 to get the y variable
/2 /2
y = 1/2

Answer 2

Does that help at all