SOLUTION: By using the process of substitution, how do you solve 3x+y=(-2), y=2x?

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Question 603339: By using the process of substitution, how do you solve 3x+y=(-2), y=2x?
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
3x+y=(-2)
y=2x
answer:y=- 4/5
x=- 2/5