This series of exercises is about solving first-degree inequalities. An important aspect is that the inequality sign changes directions when both members of the inequality are divided or multiplied by a negative number: then a greater-than sign becomes a smaller-than sign and vice versa.

1. Solve:

2. Solve:

3. Solve:

4. Solve:

5. Solve:

6. Solve:

7. Solve:

8. For which value(s) of does the following inequality have no solution:

9. Solve:

10. Solve: