SOLUTION: The sum of two numbers is 39.Twice the first number plus three times the second number is 101.

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Question 103712: The sum of two numbers is 39.Twice the first number plus three times the second number is 101.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x=first, y=second ... x+y=39 ... x=39-y

2x+3y=101 ... substituting for x gives 2(39-y)+3y=101 ... 78-2y+3y=101 ... y=23

x=39-y ... x=39-23 ... x=16