/sci/ - Science & Math

This is a really easy question but I keep getting it wrong. The answer I'm getting is "e^(x-y) + c".

The first thing I did was factor the right hand side and rearrange it so all y-related terms are on one side and the x-related on the other. I then integrated both sides, took the exponential of both sides to get rid of the logs, and finally rearranged to get it in the desired form.

I would really appreciate it if someone helped me on this because it's so simple but I continue to get it wrong.