Very good, but needs an update.

I did very much enjoy this App, it brings you up to speed in no time in all the basics of algebra.
It shows how to solve basic equations and has a very nice interface.

I would give it a 5 star rate but I do think it does need an update with more advanced equations.

I also think the area where you can add you own calculation also needs a bit of work.

Predator@live about Algebra Touch, v1.2.3