This document contains solutions to math problems involving basic arithmetic operations such as addition, subtraction, multiplication and division. The problems include simplifying expressions, evaluating expressions by substituting values for variables, and solving one-step equations. Key details provided in the solutions are the step-by-step work and final numeric answers for each problem.

1. Section 1.2 # 4 – 9 ANSWERS 4. 8 7. 32 5. 12 8. 14 6. 2 9. 29

2. 4. 14 – 3 * 2 14 – 6 8

3. 5. 42 – 2 * 5 + (8 – 2) 42 – 2 * 5 + 6 16 – 2 * 5 + 6 16 – 10 + 6 6 + 6 12

4. 6. ____28____ 42 – 2 ____28____ 16 – 2 ___28____ = 2 14

5. 7. 6b – 5a 6(7) – 5(2) 42 – 10 32

6. 8. __bc__ 2 ___(7)(4)___ 2 ____28_____ =14 2

7. 9. b2 – (8 + 3c) 72 – (8 + 3(4)) 72 – (8 +12) 72 – 20 49 – 20 =29