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### Course: 6th grade (WNCP) > Unit 2

Lesson 2: Variables and equations- Expressions with two variables
- Writing expressions with variables
- Writing basic expressions word problems
- Evaluating expressions with one variable
- Evaluating expressions with multiple variables
- Evaluating expressions with variables word problems
- Combining like terms
- Combining like terms with negative coefficients
- Combining like terms with negative coefficients
- Equivalent expressions
- Model with one-step equations
- One-step multiplication & division equations
- One-step addition & subtraction equations

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# Model with one-step equations

## Problem

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