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What are expressions and equations? What is the difference between them?

This is a free video lesson where I explain the difference between an expression and equation, give examples of both, and show how to write expressions from verbal descriptions. In a nutshell, an expression consists of letters, numbers, and operations, whereas an equation has two expressions separated by an equals sign. This video lesson is meant for grades 7-8 or pre-algebra.

See also

Working with expressions & equations — 2nd part of this lesson

Math Mammoth Grade 7 curriculum (pre-algebra)

Back to pre-algebra videos index

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