SOLUTION: The unit digit of a two digit number is one less than its ten's digit.The sum of the number when digits are reversed and the original number is 77,find the original number?

Algebra ->  Absolute-value -> SOLUTION: The unit digit of a two digit number is one less than its ten's digit.The sum of the number when digits are reversed and the original number is 77,find the original number?      Log On


   

Question 935240: The unit digit of a two digit number is one less than its ten's digit.The sum of the number when digits are reversed and the original number is 77,find the original number?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
system%28U=T-1%2C%2810U%2BT%29%2B%2810T%2BU%29=77%29

Simplify, solve the system, and evaluate 10T%2BU.