which of the following given is an example of a linear inequality?

1. 2x + 5y>3
2. x < 7
3. x - y ≤ 12
4. 6 < 3x + y
5. ¾x > 9
6. ½x + y ≥ 9
7. x - 5
8. 5x - y = 1
9. x - ¾y ≤ 4
10. x - 7y ≥ 4​