SOLUTION: When you solve a system of equations with substitution or elimination, how do you tell when the answer is "all real numbers" or "no solution"?

Question 649003: When you solve a system of equations with substitution or elimination, how do you tell when the answer is "all real numbers" or "no solution"?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
When you solve a system of equations with substitution or elimination, how do you tell when the answer is "all real numbers" or "no solution"?
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"All Real Numbers" when you end up with 1 = 1
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"No solution" when you end up with 1 = 2 or any other contradiction
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Cheers,
Stan H.
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