I have had a couple of questions in the past where I said something like
I am having a problem with [blank]. I think I should probably do [second blank].
I usually write the second sentence with uncertainty to encourage explanation. In a couple of cases "[second blank]" was the right answer. I could have taken that sentence and written a small answer.
As long as the question and answer are strong enough to stand on their own do you see any reason why I cannot answer my own question like this. I get that answering your own questions is encouraged. I more mean that I have a reservation about it being the best answer.