bleh

x + 4 = -9

Take away 4 on both sides.

x = 4--9

Two minuses make a plus

x = 4+9

Add them

x = 13

Welcome to the forum  Baileyyp  

Your solution starte4d off good but then you got into a bit of a mess.  

x + 4 > -9?

Subtract 4 from both sides - just like you said :))

x + 4-4 > -9-4

x          >   -13