IDNLearn.com is designed to help you find reliable answers quickly and easily. Our Q&A platform offers reliable and thorough answers to ensure you have the information you need to succeed in any situation.
Answer:
b, or 1b
Step-by-step explanation:
First of all, you have to combine like terms. In this situation though, they are all b. So start at the beginning. 8-9 is -1. -1 - 5 is -6. -6+7 is 1. So you say, b, because it is the same thing as 1 b.