Provide your best answer for the following math problem. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The problem is: the sum of present age of abe and the age before 7 years is 27 . find the present age of abe . what will be his age after 7 years ?
24
Abe's present age is 10. His age after 7 years will be 17.