1. Lesson 7-1 Pages 330-333 Solving Equations with Variables on Each Side

2. What you will learn! How to solve equations with variables on each side.

4. What you really need to know! To solve equations with variables on each side, use the Addition or Subtraction Property of Equality to write an equivalent equation with the variable on one side. Then solve the equation.

5. Link to Pre-Made Lesson

6. Example 1: Solve:5x+12= 2x 2x -5x-5x 12=-3x -3-3 -4=x

7. 5x+12= -2x-2x 3x+12=0 -12-12 3x=-12 33 x=-4

8. Example 2: Solve:7x+3=2x+23 -2x-2x 5x+3=23 -3-3 5x=20 55 x=4

9. Example 2b: Solve:1.7+a=2.5a−4.9 -a-a 1.7=1.5a−4.9 +4.9+4.9 6.6=1.5a 1.51.5 4.4=a

10. Example 3: A car rental agency has two plans. Under plan A, a car rents for $80 plus $20 each day. Under plan B, a car rents for $120 plus $15 each day. What number of days results in the same costs? 80 + 20d = 120 + 15d

11. Example 2b: Solve:80+20d=120+15d -15d-15d 80+5d=120 -80-80 5d=40 55 d=8 Same for 8 days

12. Page 332 Guided Practice #’s 3-9

14. Pages 330-331 with someone at home and study examples! Read:

15. Homework: Pages 332-333 #’s 10-36 even #’s 39-40, 42-53 PA Lesson Check 7-1

19. Page 739 Lesson 7-1

20. PA Lesson Check 7-1