Learn about functions, graphs, lines, and polynomials. "Algebra" is the math for describing how different things are related. 1. Addition and subtraction. What happens when you add negative numbers? Turns out it's addition! 2. Multiplication and division. An operation you just can't perform... Is there more than one way to evaluate an expression?

Find a clear explanation of your topic in this index of lessons, or enter your keywords in the Search box. Free algebra help is here!

Algebra is just like a puzzle where we start with something like "x − 2 = 4" and we want to end up with something like "x = 6". But instead of saying " obviously x=6", use this neat step-by-step approach:

Learn algebra to explore new ways of thinking and build problem-solving skills. Study algebra equations and practice advanced algebra problems with online courses delivered through edX. What is algebra? Algebra is a branch of mathematics that uses letters and symbols to represent numbers in formulas and equations.

Whether you're in middle school, high school, college, or university, these free algebra lessons can help you out! How can I use Purplemath's lessons? Purplemath's math lessons can be used in many ways: Read the lesson that relates to what you're about to study in class, so you get to class at least somewhat prepared.

Coolmath Algebra has hundreds of really easy to follow lessons and examples. Algebra 1, Algebra 2 and Precalculus Algebra.

Khan Academy offers interactive lessons and practice exercises to master algebra basics.

Step-by-step lessons on solving basic algebra equations.

Solvers with work shown, write algebra lessons, help you solve your homework problems. Interactive solvers for algebra word problems. Ask questions on our question board.

Students learn to model problems using algebra, functions, sequences, probability, and statistics. This course is aligned to the Common Core State Standards for Algebra I.