SOLUTION: x-2y=-4 2x-y=1

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Question 203039: x-2y=-4
2x-y=1
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
(1) x-2y=-4,,,,,x= (2y-4)
(2) 2x-y=1
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subst (1) into (2)
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2(2y-4) -y=1
4y-8-y=1
3y =9
y=3
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from(1),,,,x=2(3) -4 =2
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check(1),,,2-2(3) = -4,,,,,ok
(2) 2(2)-3 =1,,,,,ok