I don't think I can do it. I'm not going to give my friend the right answers.
What do you think will happen if you don't do that?
Well if I don't the friendship will probably be over.
A friend shouldn't force you to give them the right answers. You are being a better friend by making them study the subject instead of looking for free answers.
Friendship isn't that important.
You shouldn't say that and you need to realize that friendships are a big part of life.