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4. Contents Lesson 5-9Solving Equations with Rational Numbers

5. Lesson 9 Contents Example 1Solve by Using Addition Example 2Solve by Using Subtraction Example 3Solve by Using Division Example 4Solve by Using Multiplication

6. Example 9-1a Solve. Check your solution. Write the equation. Add to each side. Simplify. Rename the fractions using the LCD and add.

7. Example 9-1a Answer: Simplify. Check Write the original equation. Simplify. Replace y with.

8. Example 9-1b Solve. Check your solution. Answer:

9. Example 9-2a Solve. Check your solution. Write the equation. Subtract 8.6 from each side. Simplify. Check: Write the original equation. Simplify. Answer: Replace m with 2.6.

10. Example 9-2b Solve. Check your solution. Answer: 6.1

11. Divide each side by 9. Example 9-3a Solve. Check your solution. Write the equation. Simplify. Answer: Check: Write the original equation. Replace a with 0.4.

12. Example 9-3b Solve. Check your solution. Answer: 0.8

13. Example 9-4a Solve. Check your solution. Write the equation. Multiply each side by 6. Simplify. Answer:

14. Example 9-4a Check: Write the original equation. Simplify. Replace x with 48.

15. Example 9-4a Solve. Check your solution. Write the equation. Simplify. Check the solution. Answer: Multiply each side by.

16. Example 9-4a Check: Write the original equation. Simplify. Replace t with –10.

17. Example 9-4b a. Solve. Check your solution. b. Solve. Check your solution. Answer: 45 Answer: 16

18. End of Lesson 9

19. Pre-Alg.com Explore online information about the information introduced in this chapter. Click on the Connect button to launch your browser and go to the Pre-Algebra Web site. At this site, you will find extra examples for each lesson in the Student Edition of your textbook. When you finish exploring, exit the browser program to return to this presentation. If you experience difficulty connecting to the Web site, manually launch your Web browser and go to www.pre-alg.com/extra_examples.

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