SOLUTION: The sum of two numbers is 30. The first number is twice the second number. What are the numbers?

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Question 532146: The sum of two numbers is 30. The first number is twice the second number. What are the numbers?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+2x=30
3x=30
x=10
2x=20