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the difference of a number and twice another number is 12. The sum of the two numbers is -27. What are the two numbers?
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the difference of a number and twice another number is 12. The sum of the two numbers is -27. What are the two numbers?

User Darren Willows
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1 Answer

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Let the numbers be x and x. Then x-2y=12. Also, x+y= -27, so that x = -27 - y.

Subbing the 2nd equation into the first gives us -27 - y - 2y = 12, or

-39=3y, or y = -13 (answer). Now find x from x = -27 - y.

User Solomon
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7.8k points
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