Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal, mutualistic, or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp

Ineed to know the answer to this algebra question.