Online Course Discussion Forum
Where are the posted Solutions?
Answer key is posted, not the solutions. You are supposed to work on the problems on your own. This is by design of the course. Teachers cover some of the problems in class. The forum here is also available for hints.
You are doing a very good job by working hard on the problems. This is more important than getting the solutions quickly. For our classes, the time you spend on working is job well done, even if you don’t solve the problems.