Answer:
Here are some examples of what can be added together to get -9:
-17+8
-16+7
-15+6
-14+5
-13+4
-12+3
-11+2
-8+-1
-10+1
-9+0
-7+-2
-6+-3
-5+-4
These are a few, but there may be more as well. I'm not quite sure how many you need, hope this helps. Truly, have a wonderful day.