SOLUTION: this is a substitute equation question. x=-4y-2 3x-y=20 what is the solution?

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Question 486305: this is a substitute equation question.
x=-4y-2
3x-y=20
what is the solution?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
system%28x=-4y-2%2C3x-y=20%29
substitute x=-4y-2 into the second equation
3%28-4y-2%29-y=20
-12y-6-y=20
-13y=20%2B6
-13y=26
y=26%2F%28-13%29
y=-2
Substitute y=-2 into the first equation x=-4%2A%28-2%29-2=6
Answer (6,-2)