SOLUTION: One number is 7 times a first number. A third number is 100 more than the first. If the sum of the three numbers is 793, find the numbers.

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Question 967719:
One number is 7 times a first number. A third number is 100 more than the first. If the sum of the three numbers is 793, find the numbers.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
X IS THE FIRST NUMBER
7X IS THE SECOND NUMBER
X=X+100 IS THE THIRD NUMBER
X+7X+X+100=793
9X=793-100
9X=693
X=693/9
X=77 ANS
7*77=539 ANS.
77+100=177 ANS.
PROOF:
77+539+177=793
793=793