SOLUTION: The number obtained after interchanging the digits of a two digit number is greater than the original number by 9. If the sum of the two digits of the number is 13, what is the ori

Question 888127: The number obtained after interchanging the digits of a two digit number is greater than the original number by 9. If the sum of the two digits of the number is 13, what is the original number?
Found 2 solutions by luke94, Alan3354:
Answer by luke94(89) (Show Source): You can put this solution on YOUR website!
67
achieved from trial and error of 2 digit numbers
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Swapping the digits of a 2 digit number change its value by 9 times the difference between the 2 digits.
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t + u = 13
t - u = 1

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