SOLUTION: The sum of two numbers is -9. One of the numbers minus twice the other number is 30. Find the two numbers

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Question 1087315: The sum of two numbers is -9. One of the numbers minus twice the other number is 30. Find the two numbers
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=-9
y=-9-x
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x-2y=30
x-2(-9-x)=30
x+18+2x=30
3x=30-18
3x=12
x=12/3
x=4
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4-2y=30
-2y=30-4
y=26/-2
y=-13
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