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4.6: Simplify Variable Expressions Involving Integer Addition

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

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.

Integer

The integers consist of all natural numbers, their opposites, and zero. Integers are numbers in the list ..., -3, -2, -1, 0, 1, 2, 3...

Sum

The sum is the result after two or more amounts have been added together.

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.

Variable Expression

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

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Difficulty Level:
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Date Created:
Nov 30, 2012
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Aug 26, 2016
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MAT.ALG.161.1.L.1