SOLUTION: The sum of three numbers is 77.The third number is 2 times the first. The first number is 9 less than the second. What are the numbers?

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Question 808928: The sum of three numbers is 77.The third number is 2 times the first. The first number is 9 less than the second. What are the numbers?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+x-9+2(x-9)=77
x+x-9=2x-18=77
4x=77+27
4x=104
x=104/4
x=26 2nd
x-9=17 1st
2(x-9)=34 3rd