two less than a number tripled is at least -5 and at most 1

Question

 -6 in the solution set

 

Answer 1

https://www.wyzant.com/resources/answers/395685/two_less_than_a_number_tripled_is_at_least_5_and_at_most_1

 

I have already solved this problem at the link above.

 

Please post your problems only once.

 

Thank you

Answer 2

       -5 <= 3n - 2 <=1

 

      -5 + 2  <= 3n - 2 + 2 <= 1 +2

 

    -3 <= 3n <= 3

 

   -1 <= n <= 1  or [-1,1]

 

No -6 is NOT in the solution set.