"Have you forgotten most of your algebra? Algebra Touch will refresh your skills using touch-based techniques built from the ground up for your iPhone/iPad/iPod Touch.
Say you have x + 3 = 5. You can drag the 3 to the other side of the equation.
Enjoy the wonderful conceptual leaps of algebra, without getting bogged down by the tedium of traditional methods.
Drag to rearrange, tap to simplify, and draw lines to eliminate identical terms.
Easily switch between lessons and randomly-generated practice problems.
Create your own sets of problems to work through in the equation editor, and have them appear on all of your devices with iCloud. (there is a version of this app for OSX as well!)
Current material covers:
Simplification, Like Terms, Commutativity, Order of Operations,...