Data Sufficiency (DS) | Re: Is N divisible by 7?

Is N divisible by 7?

(1) N = x-y, where x and y are integers
(2) x is divisible by 7, and y is not divisible by 7

Hi guys, my question is not in regards to how to solve this problem, but how to know if the answer is required to be an integer or not? For example, the question above does not mention any requirements for the answer to be an integer, yet that is exactly what the outcome requires. Any help would be greatly appreciated.

Thanks