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MIDDLE SCHOOL

Mathematics (Grade 7)

Expressions and Equations

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Expressions and Equations: Algebraic Expressions and Their Structure

Understanding Equivalent Expressions

Description

Subject: Math

Chapter: Algebraic Expressions and Their Structure

CCSS Alignment: 7.EE.A.2

Lesson Title: Understanding Equivalent Expressions

Introductio...

Transcript

Imagine you and three friends are buying lunch. Each person gets one slice of pizza and one juice box.

To find the total cost, let’s represent the prices using variables.

Let p represent the cost of one slice of pizza and j represent the cost of one juice box.

Since each person gets both, the cost for one person is p + j.