Question 54748
I am stuck on correct answer for:
' 
If x + y = 2...................1
 and x - y = 6..........................2
EQN.I - EQN.2 
X+Y - (X-Y) = 2-6= -4
X+Y - X + Y =-4
2Y = -4 
 then y = -4/2 =-2

I am not using any specific book. I am just practicing..