Systems+of+Equations+-+Justifying+Solutions

**Directions:** 1. Given the following word problem, work within your group to set up a system of equations and solve the system using any of the three methods we previously learned (graphing, substitution, or elimination): "At a bookstore, used hardcover books sell for $8.00 each and used soft cover books sell for $2 each. You purchase 36 used books and spent $144. How many of each type of book did you buy?"
 * Systems of Equations - Justifying your Solutions! **

2. Now, within your groups, you will write one well-written paragraph justifying your answer. You will want to address the question "How do you know your answer is the correct answer?"

3. Post your response in the discussion board below.

4. Respond to at least one other group's response by stating whether you agree or disagree with their reasoning. You should also suggest other ways they can use to check their work.

5. At the conclusion of the assignment, check back to your post and respond to any comments that were made about your group's response. include component="comments" page="page:Systems of Equations - Justifying Solutions" limit="20"