# What to do when I don't understand an answer and author don't reply?

What to do when I don't understand an answer and author don't reply?

Solve for x $\sin 30° \sin x \sin 10° = \sin 20° \sin ({80°-x}) \sin 40°$

So someone answered my question and I don't understand a part of it. I asked the author and I did get a reply but it's not helpful enough. What to do in such cases? Should I ask a separate question on the main site regarding it?