SOLUTION: x+y=-7 X-y=11 2x+y=6 X-y=-9

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Question 694614: x+y=-7
X-y=11
2x+y=6
X-y=-9
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Are these equations all part of the same system? Or are they paired? Please elaborate. Thanks.