Algebra

Together with geometry, analysis, and number theory, algebra is one of the several main branches of mathematics. Elementary algebra is usually part of the curriculum in early high school and provides an introduction to the basic ideas of algebra, including effects of adding and multiplying numbers, the concept of variable, definition of polynomials, along with factorization and determining their roots. However, algebra is much broader than this. In addition to working directly with numbers, algebra covers working with symbols, variables, and set elements. Addition and multiplication are viewed as general operations, and their precise definitions lead to structures such as groups, rings and fields.

Most students at the high school level are being exposed only to elementary algebra—its most basic form. It is taught to students who are presumed to have no knowledge of mathematics beyond the basic principles of arithmetic. In arithmetic, only numbers and their arithmetical operations (such as +, -, ×, ÷) occur; in algebra, numbers are often denoted by symbols (such as a, x, y). This is useful because:

  • It allows the general formulation of arithmetical laws (such as a + b = b + a for all a and b), and thus is the first step to a systematic exploration of the properties of the real number system.
  • It allows the reference to "unknown" numbers, the formulation of equations and the study of how to solve these (for instance, Find a number x such that 3x + 1 = 10").
  • It allows the formulation of functional relationships (such as "If you sell x tickets, then your profit will be 3x - 10 dollars, or f(x) = 3x - 10, where f is the function, and x is the number the function is performed on.").

Additional information:

For a much better overview and history of algebra, go to the

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Algebra - Grades 6-8
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Algebra 1 Flipper
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Algebra Book 1
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Algebra Book 2
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Algebra I Word Problems
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$29.99
Algebra the Easy Way
by Douglas Downing
5th edition from Barron's
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Algebra To Go
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Art of Problem Solving Intermediate Algebra - Text & Solutions
by Naoki Sato, Richard Rusczyk, Matthew Crawford
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$74.00
Art of Problem Solving Introduction to Algebra - Textbook & Solutions Manual
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2nd edition from Art of Problem Solving
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Dr. Math Explains Algebra
by The Math Forum
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Dr. Math Gets You Ready for Algebra
by The Math Forum
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Elementary Algebra
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Cathy Duffy's 100 Top Picks
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Elementary Algebra
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Elementary Algebra - DVD
by Cassidy Cash
from Master Books
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Elementary Algebra - Solutions Manual
by Harold Jacobs & Cassidy Cash
Sol from Master Books
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Elementary Algebra - Teacher Guide
by Harold Jacobs
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Elementary Algebra - Teacher Guide
by Harold Jacobs
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Elementary Algebra - Teacher Guide / Solutions Manual
by Harold Jacobs
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Harold Jacobs Elementary Algebra - Book Set
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$128.78
Harold Jacobs Elementary Algebra - DVD Package
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Humongous Book of Algebra Problems
by W. Michael Kelley
from Alpha Books
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Life of Fred: Advanced Algebra
Life of Fred
by Stanley Schmidt
Expanded edition from Polka Dot Publishing
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Life of Fred: Beginning Algebra
Life of Fred
by Stanley Schmidt
Expanded edition from Polka Dot Publishing
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Life of Fred: Pre-Algebra 1 with Biology
by Stanley F. Schmidt
from Polka Dot Publishing
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Life of Fred: Pre-Algebra 2 with Economics
by Stanley F. Schmidt
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Mastering Algebra Skills
by Hal Torrance
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Math Without Borders Algebra 1
by David S. Chandler
from Math Without Borders
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$129.00
Math-U-See Algebra & Decimal Insert Kit
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Math-U-See Algebra 1 (LE) - Instruction Pack
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Math-U-See Algebra 1 (LE) - Level Up Base Set
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Math-U-See Algebra 1 (LE) - Level Up Set
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Math-U-See Algebra 1 (LE) - Student Pack
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Math-U-See Algebra 1 (LE) - Universal Set
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$218.08
Math-U-See Algebra 1 (PSM) - Digital Pack
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Math-U-See Algebra 1 (PSM) - Instructor Handbooks
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Math-U-See Algebra 1 (PSM) - Student Pack
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$110.00
Math-U-See Algebra 1 (PSM) - Universal Set
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Math-U-See Algebra 1 (PSM) - Universal Set with Instructor Handbooks
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Pre-Algebra - BJU Subject Kit
3rd edition from Bob Jones University Press
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Pre-Algebra - BJU Subject Kit (old)
2nd edition from Bob Jones University Press
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$169.00
Pre-Algebra Book 1
Straight Forward Math Series
by S. Harold Collins
from Garlic Press
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Saxon Algebra 1/2 - Home School Bundle with Teacher CD
3rd edition from Saxon Publishers
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Tables, Squares & Cubes
2nd edition from Classical Conversations
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Trivium Tables: Whiteboard
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Understanding Algebra I
by Terri Husted
from Critical Thinking Books
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Understanding Pre-Algebra
by Terri Husted
1st edition from Critical Thinking Books
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VideoText Algebra: Modules A-C
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