Given that (2x-y) and | x + 2y-5 | are opposite to each other, calculate the value of (X-Y) 2013

Given that (2x-y) and | x + 2y-5 | are opposite to each other, calculate the value of (X-Y) 2013


Given that (2x-y) & #178; and | x + 2y-5 | are opposite to each other, calculate the value of (X-Y) 2013
2X-Y=0
X+2Y-5=0
The simultaneous equation, x = 1, is solved
(X-Y)^2013=(1-2)^2013= -1