# 4.9: Simplify Variable Expressions Involving Integer Subtraction

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**Practice**Simplify Variable Expressions Involving Integer Subtraction

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Difference

The result of a subtraction operation is called a difference.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...Variable Expression

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

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Evaluate and simplify variable expressions involving subtraction and integers

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Date Created:

Nov 30, 2012
Last Modified:

Aug 26, 2016
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