# 2.1: Equations with Variables on One Side

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**Advanced**Created by: CK-12Estimated18 minsto complete

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**Practice**One-Step Equations and Inverse Operations

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constant

A constant is a value that does not change. In Algebra, this is a number such as 3, 12, 342, etc., as opposed to a variable such as*x, y*or

*a*.

Equation

An equation is a mathematical sentence that describes two equal quantities. Equations contain equals signs.Numerical Coefficient

In mathematical expressions, the numerical coefficients are the numbers associated with the variables. For example, in the expression , 4 is the numerical coefficient and is the variable.Variable

A variable is a symbol used to represent an unknown or changing quantity. The most common variables are a, b, x, y, m, and n.### Image Attributions

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Description

This concept introduces solving equations with variables on one side.

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Difficulty Level:

Advanced
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Date Created:

Apr 30, 2013
Last Modified:

Aug 16, 2016
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