SOLUTION: Use the elimination method to solve the system of equations x+y=-3 x-y=13 What's the ordered pair?

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Question 1007195: Use the elimination method to solve the system of equations
x+y=-3
x-y=13
What's the ordered pair?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Simple with those. Add the members eliminates y. Subtract the members eliminates x.

That means do this:
%28x%2By%29%2B%28x-y%29=-3%2B13
and then
%28x%2By%29-%28x-y%29=-3-13