SOLUTION: The sum of the digits of a three-digit number is 9. The tens digit is 3 times the hundreds digit. If the digits are reversed in order, the new number is 99 less than the original n

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: The sum of the digits of a three-digit number is 9. The tens digit is 3 times the hundreds digit. If the digits are reversed in order, the new number is 99 less than the original n      Log On


   

Question 1010181: The sum of the digits of a three-digit number is 9. The tens digit is 3 times the hundreds digit. If the digits are reversed in order, the new number is 99 less than the original number. Find the original three-digit number.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
h, t, u for Hundred, Tens, Ones or Units.
Original Number, 100h+10t+u.

system%28h%2Bt%2Bu=9%2Ct=3h%2C100u%2B10t%2Bh=-99%2B100h%2B10t%2Bu%29

system%28h%2Bt%2Bu=9%2Ct=3h%2C99u-99h=-99%29

system%28h%2Bt%2Bu=9%2Ct=3h%2C99h-99u=99%29

system%28h%2B3h%2Bu=9%2Ch-u=1%29
Finish this.