## LESSON: Solving Addition and Subtraction Equations

### Vocab/Objectives

## Objectives

- Solve single-variable addition equations.
- Solve single-variable subtraction equations.
- Recognize and apply the addition and subtraction properties of equality and the inverse relationship of addition and subtraction.
- Model and solve real-world problems using addition and subtraction equations.

- Isolate the variable
- an explanation used to describe the action of getting the variable alone on one side of the equal sign.

## Vocabulary

- Inverse Operation
- the opposite operation

- Subtraction Property of Equality
- states that you can subtract the same quantity from both sides of an equation and have the equation still balance.

- Addition Property of Equality
- states that you can add the same quantity to both sides of an equation and have the equation still balance.