SOLUTION: I am not exactly sure how to solve this. Can someone help me understand how to work this please... 4x-y=-33 -4x-4y=68 if x=-10 and y=-7 how do I complete this equation? Th

Question 352574: I am not exactly sure how to solve this. Can someone help me understand how to work this please...
4x-y=-33
-4x-4y=68
if x=-10 and y=-7 how do I complete this equation? Thanks in advance
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Add the equations together,

Now use either equation to solve for .

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