SOLUTION: solve 2x+y=-1 y=x+8 using the substitution method

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Question 773363: solve 2x+y=-1
y=x+8
using the substitution method

Answer by Tatiana_Stebko(1539)   (Show Source): You can put this solution on YOUR website!

Substitute into the first equation of the system




Substitute into


- the solution of the system
Check the answer

- correct
Answer: (-3, 5)

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