The inequality is
.
Apply distributive property:
.


Subtract 3 from each side.
\

Divide each side by negative 9.
\

Check:
\To check, substitute three different values for n into the original inequality,
: negative 2, a number less than 2, and greater than 2.
Let three values for n are
.
If
then
(This is false)
If
then
(This is true)
If
then
(This is true)
The solution set is
.