1. Warm Up – work with your seat partner to simplify the following equations HW check

2. Find your “like term” partners Exploration #1 S = sum of the angle measures n = number of sides

3. S=180 X=12 S=180 X=50 S=360 X=52 S=360 X=75 S=540 X=20 S=720 X=40

4. 1.2 Solving Multi-Step Equations Today’s learning goal is: Students will be able to solve and use multi-step equations

5. Vocabulary Recall Inverse Operations: two operations that undo each other (i.e. addition and subtraction) Mean: the sum of the data divided by the number of data values

6. Examples 1)Solve: Use the inverse operation of subtraction (additionion) Combine like terms Use the inverse operation of multiplication (division)

7. Examples 2) Solve: Simplify first!! Combine like terms on the right! Combine Like Terms Use the inverse operation of addition (subtraction) Combine Like Terms Use the inverse operation of multiplication (division)

8. You try! 1.)2.)

9. Another Example! 3.) Distributive Property Combine Like Terms (inverse operation) subtract the 5 from both sides Combine Like Terms (inverse operation) divide both sides by -2

10. You try! 3.)

11. Solving Real Life Problems Use the table to find the number of miles x you need to bike on Friday so that the mean number of miles biked per day is 5. What is mean? How do you find the mean? DayMiles Mon3.5 Tues5.5 Wed0 Thu5 Frix

12. You try! Your schools drama club charges $4 per person for admission to a play. The club borrowed $400 to pay for costumes and props. After paying back the loan, the club has a profit of $100. How many people attended the play? amt per person · (the number of people that attend) – loan = profit 4 · x - 400 = 100 4x – 400 = 100 4x – 400 + 400 = 100 + 400 4x = 500 x=125 people

13. Workbook p. 10 & 11 with your “like terms” partners *each student does and shows the work in their own workbook – your partners are there to help you!

14. Exit Ticket!