.
These two inequalities are connected by the conjunction term "OR".
It means that you should solve each inequality SEPARATELY, and then take a UNION of the solution domains.
This UNION will be the final solution.
So I will implement it in two steps.
1.  2x + 1 < -5  is equivalent to  2x < -5 -1,   or  2x < -6,   or x < -3.
2.  2 + 3x > 11 is equivalent to   3x > 11 - 2,  or  3x > 9,   or  x > 3.
Answer.  The solution is the union  (
,
) U (
,
).