Question 391804
4y + x = -2 
x = -4y 
---------------
If you sub for x:
4y + (-4y) = -2
0 = -2
There's no solution.
-----------------
4y + x = -2 --> x = -4y - 2
x = -4y 
If you graph these, you get 2 parallel lines.  No intersection, no solution.