SOLUTION: The sum of a two-digit counting number is 9. When the digits are reversed, the new number is 9 less than the original number. What are the two numbers?

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Question 251593: The sum of a two-digit counting number is 9. When the digits are reversed, the new number is 9 less than the original number. What are the two numbers?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=9
10a+b-9=10b+a
5 and 4
check
54-9=45
5+4=9
ok