One of the tougher math puzzles I've solved
I got this puzzle from Facebook friend, and spent a good hour solving it. I'm sure there's some people here smarter than I who can make quick work of it though.(Note: I'm adding in all of the examples that my friend had answered before I started trying to solve it, just to be fair)
The rules are simple. You can either give me an expression that I will solve to help you figure out the answer, or you can solve the riddle.
Here are the initial examples:
What are you looking for? 403384+29x999=?????
BONUS! another problem to solve if you so choose: