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What are variables, expressions, and equations? | Introduction to algebra | Algebra I | Khan Academy
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-intro-equations/v/variables-expressions-and-equations Learn what variables, expressions, and equations really are. Practice this lesson yourself on ...
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