1. Welcome to Interactive Chalkboard

2. Welcome to Interactive Chalkboard

3. Welcome to Interactive Chalkboard

4. Welcome to Interactive Chalkboard

6. Solve . Then check your solution. Check: h – 12 = -27 -15 – 12 = -27 -27 = -27 Example 2-1a

7. Solve . Then check your solution. k + 63 – 63 = 92 - 63 Check k + 63 = 92 29 + 63 = 92 92 = 92  Example 2-2a

8. Solve . Then check your solution. a – 24 + 24 = 16 + 24 a = 40 Check: a – 24 = 16 40 – 24 = 16 16 = 16 

9. Solve . Then check your solution. t + 22 – 22 = -39 – 22 t = -61 Check: t + 22 = -39 -61 + 22 = -39 -39 = -39 Example 2-2b

10. Solve ·3 ·3 ·5 ·5 y = Example 2-4a

11. Solve . ·2 ·2 Example 2-4c

12. Solve . ·2 ·2 Example 2-4c

13. Solve . ·2 ·2 Example 2-4c

14. Answer: Write an equation for the problem. Then solve the equation and check your solution. Fourteen more than a number is equal to twenty-seven. 14 27 n Example 2-5a

15. Write an equation for the problem. Then solve the equation and check your solution. Twelve less than a number is equal to -25 12 - n -25 n – 12 = -25 n – 12 + 12 = -25 + 12 n = -13 Example 2-5a