Definition

Algebraic Expression

An expression in algebra is a number, a variable, or any combination of numbers and variables joined by operation symbols such as ++, -, \cdot, and ÷\div. Expressions represent a value but do not make a complete mathematical statement on their own. For example, 3+53 + 5, n1n - 1, 676 \cdot 7, and xy\frac{x}{y} are all expressions. A single number like 77 or a single variable like xx also qualifies as an expression.

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Updated 2026-04-21

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Elementary Algebra @ OpenStax

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