Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises - Page 182: 36

-5, -4, -3, and -2

We need to get the variable alone. In order to cancel out division, we use multiplication, so we multiply both sides of the inequality by 2. Thus, we obtain that $c \lt 1$. Thus, four solutions to the inequality are: -5, -4, -3, and -2.