What is the solution set to this inequality, where x is a real number: - 4x

x ≥ 9

Step-by-step explanation:

Considering the equation is;

-4x (less than or equal to) 36, as provided by the questioner;

-4x ≤ 36

Dividing both sides by - 4

-4x/-4≤ 36/-4

We get;

x ≥ - 9, the sign ≤ changes to ≥ since we have divided by a negative.

x ≥ 9