SOLUTION: What is the subsitution of ' x+y=-1 and x+y=8 ' and how many solutions does it have ?
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Question 397001: What is the subsitution of ' x+y=-1 and x+y=8 ' and how many solutions does it have ?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
No solutions. If x+y = -1 and x+y = 8, then -1 = 8 (by the transitive property), therefore,contradiction.
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