We solve for m in the middle.
We begin by adding 7 to all three sides:
4 > -3m - 7 > 2
+7 + 7 +7
----------------
11 > -3m > 9
Then we divide all three sides by -3. But when (but only when)
we divide through by a negatve number, we reverse the inequalities:
< < < m < -3
The graph would be:
------⚪=====⚫-----
-3
And the interval notation for that is:
(, -3]
Edwin