SOLUTION: Please solve x+3y=0 and 5x+y=14 using either the substitution or addition method! Thanks!

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Question 841198: Please solve x+3y=0 and 5x+y=14 using either the substitution or addition method!
Thanks!
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.x%2B3y=0
2.+5x%2By=14
From eq. 1,
x=-3y
Substitute into eq. 2,
5%28-3y%29%2By=14
-15y%2By=14
-14y=14
y=-1
Then
x=-3%28-1%29
x=3