1. Solve. Then check your solution. Check: 5(10) – 13 = 37 50 – 13 = 37 37 = 37  Example 4-2a

2. Solve 4a – 42 + 42 = 14 + 42 4a = 56 4 a = 14 Check: 4(14) – 42 = 14 56 – 42 = 14 14 = 14 Example 4-2b

3. Solve (12) (12) s = –240

4. Solve - 4 - 4 = 33 (11) (11) a = 363 Example 4-3c

5. Solve ( ) (-3) (-3) r = 14 Example 4-4a

6. Write an equation for the problem, then solve the equation. Eight more than five times a number is negative 62. n 8 62 5 5 5 n = –14 Example 4-5a

7. Write an equation for the problem, then solve the equation. Find three consecutive odd integers whose sum is 57. 1st odd number 2nd odd number 3rd odd number + + = 57 n n + 4 n + 2 17, 19, 21 Example 4-6a