Represent the solution set of each of the following inequalities on the real number line :

7 - x ≤ 2 - 6x

Represent the solution set of each of the following inequalities on the real number line :

x + 3 ≤ 2x + 9

x ∈ {real numbers} and -1 < 3 - 2x ≤ 7, evaluate x and represent it on a number line.

List the elements of the solution set of inequation -3 < x - 2 ≤ 9 - 2x; x ∈ N.