-9x ≤ 27
to solve the previous inequality, divide by -9 both sides, and consider that when you divide or multiply by a negative quantity the sense of the inequality changes, then, you have:
-9x/(-9) ≤ 27/(-9)
x ≥ -3
The graph is:
For the following inequality:
x - 5 > -3
you obtain:
x - 5 > -3 add 5 both sides
x > -3 + 5
x > 2
The graph is
the open parenthesis means that x=2 is not a solution of the inequality, only numbers greater then x=2.