Definition and etymology Algebra is the branch of mathematics that studies algebraic structures and the operations they use. [1]

Algebra is great fun - we get to solve puzzles! What is the missing number? OK, the answer is 6, right? Because 6 − 2 = 4. Easy stuff. Well, in Algebra we don't use blank boxes, we use a letter (usually an …

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; …

Algebra deals with Arithmetical operations and formal manipulations to abstract symbols rather than specific numbers. Understand Algebra with Definition, Examples, FAQs, and more.

Feb 27, 2026 · Algebra is the branch of mathematics in which abstract symbols, rather than numbers, are manipulated or operated with arithmetic. For example, x + y = z or b - 2 = 5 are algebraic …

Discover free and interactive resources for exploring and practicing algebra, organized by grade level for easy browsing. Ideal for teachers and students in Grades 4-12.

Jul 23, 2025 · This section covers key algebra concepts, including expressions, equations, operations, and methods for solving linear and quadratic equations, along with polynomials and factorization.

Algebra is a branch of mathematics in which letters are used to represent unknown quantities in mathematical expressions. Learn about variables, terms, & examples.

May 29, 2007 · Algebra is of philosophical interest for at least two reasons. From the perspective of foundations of mathematics, algebra is strikingly different from other branches of mathematics in …

Interactive online math videos, lessons, and tutoring. Algebra, geometry, trigonometry, precalculus, and calculus!