SOLUTION: how do I answer this? the units digit of a two-digit number is one more than twice the tens digit. find the number if the sum of its digits is 7. Thank you very much :)

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Question 778319: how do I answer this?
the units digit of a two-digit number is one more than twice the tens digit. find the number if the sum of its digits is 7.
Thank you very much :)
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Let the units digit be u and the tens digit be b.
The number is 10b%2Bu.

u=1%2B2b and u%2Bb=7