x + 2Y = 17
Y + 2x = 19
(Y + 2x) - (x + 2y) = 19-17 = 2
y +2x - x -2Y = x-y =2
(x+2y) - (x-y)= 17-2 =15
3Y=15
y=5
x = y+2 = 7
x + 2Y = 17
Y + 2x = 19
(Y + 2x) - (x + 2y) = 19-17 = 2
y +2x - x -2Y = x-y =2
(x+2y) - (x-y)= 17-2 =15
3Y=15
y=5
x = y+2 = 7