I am referring to this question, and my answer to it.
The question asks for solutions to a particular equation, and not for any proof (why they work, how many exist, etc.). It also does not mention what kind of approach is to be used. It just asks for solutions.
I have almost no knowledge in solving such questions (except for the fact that I can comprehend the question). The first thing that struck me when I read it was the obvious solution I gave. I don't know whether any other solution exists, but I just thought it would be best to let them know of the solution (since no one else seemed to have known it).
I agree my answer is not complete, and may or may not be helpful to the OP. Should I have posted my answer in the comments?
As an additional note, on beta sites like Puzzling and Worldbuilding, even the most incomplete answers (often just one-liners) are not rejected in such a manner. People do comment on them, and sometimes upvote. Others often elaborate these answers.
Here is my answer and the comments on it.