SOLUTION: 3x+y=2 4x+y=20

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Question 390155: 3x+y=2
4x+y=20
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Subtract eq. 1 from eq. 2,
4x%2By-3x-y=20-2
highlight%28x=18%29
Then use either equation to solve for y,
4%2818%29%2By=20
72%2By=20
highlight%28y=-52%29