A step by step algebra tutorial. Choose from a variety of topics: fractions (add, multiply, simplify), lines (slope-point, slope-intercept, 2 points, and general equation), circles, linear equations, system of linear equations, linear inequations, factoring (integers, difference of squares, series of terms), quadratic equations. Each topic include a very large number of examples. Each example takes you, step by step, from the original equation to the solution. Can go forward and backwards at your own pace.