4x+2y=2
now u have to multiply the second line by 2 so the y becomes the same.
6x+2y=8
4x+2y=2
6x+2y=8
since u have two positives which r the same (2y) u need to subtract the whole line by the top line
4x+2y=2
-
6x+2y=8
__________
-2x+0=-6
-2x=-6
x=-6/-2
two negative equals a positive so your answer will be
x=3
hope this helps u