SOLUTION: solve for x and y 2x-y=-1 y=2x

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Question 261892: solve for x and y
2x-y=-1
y=2x
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
they are parallel. so they do not cross and therefore have no solution
2x-y=-1
y=2x
substitute
2x-2x=-1
0=-1
that can't be
therefore there is no solution