SOLUTION: the sum of three numbers is 75.the second number is 5 more than 4 times the first, and the third is 2 times the first.find the second number

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Question 342491: the sum of three numbers is 75.the second number is 5 more than 4 times the first, and the third is 2 times the first.find the second number
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Let A,B and C be the numbers.
1.


Substitute into eq. 1,




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