SOLUTION: 2x + 1 < –5 or 2 + 3x > 11

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Question 1100147: 2x + 1 < –5 or 2 + 3x > 11
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
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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  (-infinity,-3) U (3,infinity).