Answer:
I would think it's X= -29 1/3
Step-by-step explanation:
You have 20 1/3 already, and to get to a negative when you have a positive number, to the positive you would need to add a larger negative. (If that makes any sense, it's hard to explain.) So you have to get rid of the 20 1/3 and you have to get to -9, so I would add a 9 to 20 1/3 to get 29 1/3, and make that number negative because then it will cancel the positive out. Making it -9.
What do you need help with?
Answer:2
just make them into positive if there’s 2 negatives 7-5=2
35 divided by 7=5 so there's 5 books on each shelf
