Answer:

Step-by-step explanation:
You want to isolate r. As you can see all the numbers on the right would be multiplied so to isolate r you would have to divide the numbers on the right and do the same to the left side.
Answer:
-4-8=-12. 3-(-1)=3
Together they equal -9
Step-by-step explanation:
You have to multiply by the - sign outside the parentheses and the first one just count backwards
Answer:
hgo87ii76r7687ro
Step-by-step explanation:
Corresponding is the answer.