How do I solve this problem and then graph?

Question

x-y=4

x+y=-2

 

 

Please solve step by step

Answer 1

Please see my previous solution.

 

I can solve this one as well using any of the three methods, but you should be able to do this yourself after my detailed explanation.

 

The solution is (1, -3).

 

Post a reply if you still need help.