I cannot graph this on a number line, but I can describe the answer of how to put it on a number line afterwards.
-5x -25 > 30
Add 25 to both sides to get -5x by itself.
-5x > 55
Divide both sides by -5, and remember to flip the inequality when dividing/multiplying by a negative.
x <_ -11 is your inequality.
To show this on a number line, put an open dot at the left of the number line and draw the line going all the way to the left with the arrow pointing to the left. This shows that x is less than or equal to -11.
I hope this helps!
