1. DO NOW: 1) 2)

2. Hook How are two step equations different than one step equations? 8x+4=12 and 3x=9 −5n+3(6+2n) In the past weeks we learned how to distribute and combine like terms. How do we simplify this expression?

3. Solve -5n +3(6+2n)=20 How is this now different from the expression? How do I solve this problem? How am I going to get rid of the parenthesis in this problem?

4. -5n +3(6+2n)=20 How do I know if my final answer is correct?

5. -5n +3(6+2n)=20 Check

6. 2(n+5)=-2 What ways can I remove the parenthesis? How do I know my answer is correct?

7. 7x- 3(3x-17)=35 How is this equation different from our last equation? What makes this problem complex? Why?

8. 7x- 3(3x-17)=35 How do we know if the final answer is correct?

9. SOLVE AND CHECK

10. 4. Mike won 55 pieces of gum playing hoops at the county fair. At school he gave four to every student in his math class. He only has 3 remaining. How many students are in his class? Challenge Problem 5. Chelsea wanted to make note cards by cutting pieces of paper in half. Before starting she got three more pieces to use. When she was done she had 24 half-pieces of paper. With how many pieces did she start?

11. Wrap Up What additional steps did we add to solving for equations? Solve 12(x-4)=144