01 - What is a Variable? (Part 1) Learn How to Use Variables in Algebra.
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01 - What is a Variable? (Part 1) Learn How to Use Variables in Algebra.
Get more lessons like this at http://www.MathTutorDVD.com In this lesson, we will learn what a variable is and why they are important in Algebra. A variable is a placeholder for a numerical value. If we don't know what a number is in an equation, we use a variable to represent the number. Usually we then solve the equation to find out what the ...
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