# 1.14: Expressions with One or More Variables

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**Basic**Created by: CK-12Estimated15 minsto complete

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**Practice**Expressions with One or More Variables

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algebraic

The word*algebraic*indicates that a given expression or equation includes variables.

Algebraic Expression

An expression that has numbers, operations and variables, but no equals sign.Exponent

Exponents are used to describe the number of times that a term is multiplied by itself.Expression

An expression is a mathematical phrase containing variables, operations and/or numbers. Expressions do not include comparative operators such as equal signs or inequality symbols.Order of Operations

The order of operations specifies the order in which to perform each of multiple operations in an expression or equation. The order of operations is: P - parentheses, E - exponents, M/D - multiplication and division in order from left to right, A/S - addition and subtraction in order from left to right.Parentheses

Parentheses "(" and ")" are used in algebraic expressions as grouping symbols.revenue

Revenue is money that is earned.substitute

In algebra, to substitute means to replace a variable or term with a specific value.Variable Expression

A variable expression is a mathematical phrase that contains at least one variable or unknown quantity.### Image Attributions

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Description

Evaluate multi-variable expressions with given values.

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Date Created:

Oct 29, 2012
Last Modified:

Sep 04, 2016
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