SOLUTION: 3x+4y=5 2x+y=1 substitution or elimination

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Question 370135: 3x+4y=5
2x+y=1
substitution or elimination
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.3x%2B4y=5
2.2x%2By=1
Multiply eq. 2 by (-4) and add to eq. 1,
3x%2B4y-8x-4y=5-4
-5x=1
highlight%28x=-1%2F5%29
Then from eq. 2,
2%28-1%2F5%29%2By=1
-2%2F5%2By=1
highlight%28y=7%2F5%29