what is the solution of comparison of 2(x-y)=14 and x+2y=-2
2(x-y)=14 ---1
x+2y=-2 ---2
from 1 expand brackets
2x-2y=14 ---3
add equaltions 2 and 3
x+2y=-2
2x-2y=14
x+2y+2x-2y=-2+14
3x=12
hence find x, then substitute value for x in one of the original equations to find y