SOLUTION: Determine whether (-3,1) is a solution of the following system of equations: y=-1/3 x 3y=-5x-12 and please explain

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Question 612879: Determine whether (-3,1) is a solution of the following system of equations:
y=-1/3 x
3y=-5x-12
and please explain
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
yes it is .
Plug it into each equation and it works