Answer: FIRST OPTION.
Explanation:
To know which is the solution set given the inequality
you need to solve for the variable "x".
You must divide both sides by 3:
![3x < -6\\\\(3x)/(3)=(-6)/(3)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bpat8quf674si27rlmooqqul76m2rxunev.png)
Therefore, you get:
![x<-2](https://img.qammunity.org/2020/formulas/mathematics/high-school/yttki6knm0gkajw65p44nlbky0m7uso3tk.png)
Then, the solution set is the following:
{
}
You can observe that this solution set matches with the first option.