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Contents Lesson 5-9Solving Equations with Rational Numbers

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

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

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

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

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.

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

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.

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

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

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

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

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

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

End of Lesson 9

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