-33 < -7n - 12 < -26
First step is to add 12 to both sides.
-33 < -7n < -26-21 < -7n < -14
Now divide both sides by -7.
3 < n < 2
Because you divided by a negative number though, you need to switch up the signs. Both the < will turn into >.
3 > n > 2