1. AIM: How can we solve a system using addition or subtraction? Topic: Solving systems by adding or subtracting

2. AIM: How can we solve a system using addition or subtraction? DO NOW:

3. Mini-Lesson/Guided Practice You can use the Addition and Subtraction Properties of Equality to solve a system by the elimination method. You can add or subtract equations to eliminate a variable.

4. Guided Practice

10. Independent Practice

11. Homework pp. 390–393 Practice by example: ex. 3, 6, 8 Apply your skills: ex. 39, 41 Challenge: ex. 44 Test Prep: ex. 47, 48 Mixed Review: ex. 51–55, 57, 58

13. Guided Practice pp. 387–388: Examples 1, 2 Quick Check 1, 2 p. 390–391: ex. 1, 2, 4, 5, 7