SOLUTION: The sum of three numbers is 104 . The second number is 3 times the third. The third number is 9 less than the first. What are the numbers?

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Question 972454: The sum of three numbers is 104
. The second number is 3
times the third. The third number is 9
less than the first. What are the numbers?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let the numbers be A, B, and C.
A%2BB%2BC=104
.
.
B=3C
.
.
C=A-9
A=C%2B9
Substitute into first equation,
%28C%2B9%29%2B3C%2BC=104
5C%2B9=104
5C=95
C=19
Then,
B=3%2819%29
B=57
and
A=19%2B9
A=28