SOLUTION: Is there a way to tell if there is no solution by just looking at the equations?

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Question 629686: Is there a way to tell if there is no solution by just looking at the equations?

Found 2 solutions by Edwin McCravy, richwmiller:
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
Sometimes yes, sometimes no. It all depends on the equation.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Yes.
You can do it by looking at