You will encounter the term variable when you learn about programming. In programming, a variable could contain a number, but also characters, words, or other types of values.

A symbol, often a letter from the alphabet, which represents an unknown value.

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Algebra

Variable

Coefficient

Algebraic Expression

Combining like Terms

Subtracting Variables

Adding and Subtracting Unlike Terms

Multiplying Numbers by Coefficients

Combining Variables with Exponents

Replacing a Variable with a Number

Elementary Algebra

Introduction

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