1. Chapter 3 Unit Question How do we add in algebra?

2. Open Learning Logs Date on Left…Section 3 – 4 on right

3. Warm Up Write the opposite and the reciprocal of each number. 1. -9 2. 2/3 3. 12 4. 1.5 5. -20 6. 1/8 7. -4 8. 16 9. -2½ 10. 3.65

4. Section 4 How do we solve equations of the form ax + b = c ?

5. Homework Check

6. Algebraic Manipulation…HoffmaStyle… 1)Do addition or Subtraction FIRST 2)Do Multiplication LAST a.k.a. Drop the Op a.k.a. The Reciprocal/ “Bring Down…Bring Over” thing

7. 6m + 11 = 125 Steps: Find the variable… What’s being added? Drop the Op! -11 -11 6m = 114 What’s multiplying? Now reciprocate or Bring down/Bring Over! m = 19 3 + 5y = 23 -3 -3 5y = 20 y = 4 Find the variable, Drop the Op Reciprocate or Bring Down/Bring Over Get ‘er Done! Try these easy ones… 6655

8. Last of the “easy ones” GUSH! Try Now… Hey! Don’t miss that sign!

9. 5 less than 4 times a number is 35. Find the number Let n = the number The number is 10

10. Tickets to a concert are $10 each plus a $12 service charge. If I paid $112 for my friends and I to see Aerosmith… How many friends am I taking? Let t = # of tickets purchased However, 1 is mine, so I am taking 9 friends

11. The length of a jet part was 0.5 cm too long. It was shortened and then it was 0.01 cm too short. How much of the part was cut off? Set up an equation and solve! GUSH! Let c = amount cut off 0.51 cm were cut off!

12. Homework QuizPrep 3 – 1 to 3 – 4 Quiz TOMORROW!

13. Homework Do HoffmaSheet 3 – 4