SOLUTION: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39 what is the larger number I need help i CAME UP WITH 17 BUT i AM NOT SURE HOW I

Question 60767: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39 what is the larger number I need help i CAME UP WITH 17 BUT i AM NOT SURE HOW I GOT IT.cAN YOU SHOW ME PLEASE?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
One number is 12 more than another. The sum of the smaller number and twice the larger number is 39 what is the larger number
:
Let the larger number = x
the smaller number = (x-12)
:
Write an equation for what it says:
"The sum of the smaller number and twice the larger number is 39"
(x-12) + 2x = 39
:
3x - 12 = 39
3x = 39 + 12
x = 51/3
x = 17
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