[ajford]

You thought solving for X was hard... wait till you're solving for 你好!

I doubt there's much behind the joke beyond the stereotype of "Asians being good at math", tbh.

My Algebra teacher in school once solved a system of equations on the board using the Batman logo/symbol, a Peace sign, and a happy face. Just to illustrate the concept of variables since a few people were having issues grokking the concept.