For this case we have the following system of equations:
[tex]y =-x-4\\y = x[/tex]
If we substitute the second equation in the first we have:
[tex]x = -x-4\\2x = -4[/tex]
[tex]x=\frac{-4} {2}\\x = -2[/tex]
So:
[tex]y = -2[/tex]
Thus, the lines intersect at:[tex](x, y):(-2,-2)[/tex]
Answer:
See attached image
[tex](x, y): (- 2, -2)[/tex]
