1. Splash Screen

2. WARM-UP PROBLEMS

3. 1.A 2.B 3.C 4.D Five Minute Check 4 (over Lesson 3-1) A.7b = 16 B.3b = 16 + 4 C.4 + 3b = 16 D.4b + 3 = 16 Write the sentence as an algebraic equation. Four more than three times a number is 16.

4. 1.A 2.B 3.C 4.D Five Minute Check 5 (over Lesson 3-1) A.580 – h = 130 B.h + 580 = 130 C.h + 130 = 580 D.h – 130 = 580 Kamaya’s biology class requires 580 pages of reading over the course of the school year. Her history class requires 130 more pages than her biology class. Write an equation that models this situation.

5. 1.A 2.B 3.C 4.D Five Minute Check 6 (over Lesson 3-1) A.c = 1.35 + 0.59r B.1.35c + 0.59 = r C.0.59r – 1.35 = c D.c = 1.35 – 0.59r A diner charges $1.35 for a cup of coffee and $0.59 for refills. Which equation could be used to find the cost c of a cup of coffee with r refills?

6. Lesson Menu Five-Minute Check (over Lesson 3–1) Main Idea Key Concept: Subtraction Property of Equality Example 1:Solve Addition Equations Example 2:Solve Addition Equations Example 3:Real-World Example Key Concept: Addition Property of Equality Example 4:Solve a Subtraction Equation Example 5:Real-World Example

7. Main Idea/Vocabulary Solve addition and subtraction equations (2.8.8E) (M7.D.2.1). 1.D

8. KC 2

9. Example 4 Solve 12 = z – 8. Check your solution. Answer: 20 Solve a Subtraction Equation 12 = z –8Write the equation. +8 = +8Add 8 to each side. 20 = zSimplify. Check Since 12 = 20 – 8, the solution is correct.

10. 1.A 2.B 3.C 4.D Example 4 A.22 B.32 C.30 D.24 Solve w – 5 = 27.

11. Example 4 MUSIC Vivian practiced the piano for 32 minutes. She practiced 11 minutes less than her brother. How long did her brother practice the piano? WordsVivian’s practice time is 11 minutes less than her brother’s practice time. VariableLet x = her brother’s practice time. Equation32 = x – 11

12. Example 5 Answer: Vivian’s brother practiced for 43 minutes. 32 = x – 11Write the equation. +11 =+11Add 11 to each side. 43 = xSimplify.

13. 1.A 2.B 3.C 4.D Example 5 A.38°F B.45°F C.51°F D.64°F WEATHER The high temperature today is 51°F. This is 13° less than the high temperature yesterday. Find the high temperature yesterday.

14. REVIEW Solve each equation. 1.x – 5 = 6 2.-1 = c – 6 3.John F. Kennedy was the youngest president to be inaugurated. He was 43 years old. This was 26 years younger than the oldest president to be inaugurated— Ronald Reagan. Write an equation to find how old Reagan was when he was inaugurated. 11 5 43 = r – 26; 60 years old

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16. Resources Five-Minute Check (over Lesson 3–1) Image Bank Math Tools Solving Equations Using Models Perimeter Solving EquationsTwo-Step Equations

17. End of Custom Shows