Algebra is a branch of mathematics that deals with the properties of operations and the structures by which these operations are defined. These pages are an introduction to the basic ideas of algebra, including the concepts of variables, polynomials, factorization and graphing.
Algebra essentially evolved from the rules of arithmetic which begins with the four operations: addition, subtraction, multiplication and division. Operations in algebra follow the same rules as those in arithmetic except Algebra uses variables, which are usually letters, to represent unknown numbers, and expressions which are mathematical statements that use numbers and/or variables.
Algebra is used for problem solving in engineering, architecture, science, economics, finance, and many other tasks. We hope the information here will help you better understand this powerful tool.
Originally created November 7, 2007 by Grandpa Freddy, founder of the Weird Grandpas' 'Association.™