SOLUTION: 4x+y=21 -2y+6y=9

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Question 551330: 4x+y=21
-2y+6y=9
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
4x+y=21
-2y+6y=9
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Multiply the 2nd eqn by 2, then add.