SOLUTION: Can someone help me solve the system of equations here symbolically, graphically and numerically? 3x+y=2 x-y=14

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Question 746462: Can someone help me solve the system of equations here symbolically, graphically and numerically?
3x+y=2
x-y=14
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
There are a few ways to solve this. Let's do substitution.
3x+y=2
x-y=14
Subtract y in the second equation to get:
x=y+14
Plug this into the first equation:
3(y+14)+y=2
Expand:
4y+42 = 2
Subtract 42 and divide by 4 to get:
y=-10
Plug the into the second equation and we know:
x=4
Make sense?
RJ
www.math-unlock.com