Since we have told that x represents the number of families he needs to sell to
We have also been told that he wants to sell 3 types of insurance to each family
This will mean that he will sell a total of
[tex]3\text{ }\times\text{ }x\text{ = 3}x[/tex]We are also told that he plans to sell more than 27 policies, this means that
the total sales will exceed 27
Therefore
[tex]\text{3}x\text{ > 27}[/tex]Then the value of x can be obtained if both sides are divided by 3
[tex]\begin{gathered} \frac{\text{3}x\text{ }}{3}>\frac{27}{3} \\ \\ x\text{ > 9} \end{gathered}[/tex]