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You have solved a system of equations by substitution and got one solution. How were you able to determine it was one solution?
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25 votes
You have solved a system of equations by substitution and got one solution. How were you able to determine it was one solution?

User CarlLee
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1 Answer

4 votes

Answer: the variable can not be replaced by any other number

Explanation:

User Abdelwahed
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