1. 5 Minute Check

2. Solve and show work. 1. x + 5 = 11

3. 5 Minute Check Solve and show work. 1. x + 5 = 11 -5 = -5 x + 0 = 6

4. 5 Minute Check Solve and show work. 2. 45 + c = 74

5. 5 Minute Check Solve and show work. 2. 45 + c = 74 -45 = -45 0 + c = 29

6. 5 Minute Check

10. Flashcards

11. Thursday, Dec 12 Lesson 7.3 Solve and Write Subtraction Equations

12. Objective: To solve and write subtraction equations.

13. Solve and Write Subtraction Equations Subtraction and Addition Property of Equality states if two expressions are equal to each other and the exact same thing is added to or subtracted from both sides, the two sides will remain equal.

14. Solve and Write Subtraction Equations An equation is only true if both sides are equal. A teeter totter will only be balanced if there is equal weight on both sides.

15. Solve and Write Subtraction Equations Solving an algebraic subtraction equation is the same as solving an algebraic addition equation.

16. Solve and Write Subtraction Equations Solve. x – 2 = 3 To Solve an Addition or Subtraction Equation. Step 1- Determine which side of the equation has the variable and a constant on the same side.

17. Solve and Write Subtraction Equations Solve. x – 2 = 3 Step 2 - Add the opposite of the variable side constant to both sides, making sure to line up the constants. What is the variable side constant?

18. Solve and Write Subtraction Equations Solve. x – 2 = 3 What is the variable side constant?

19. Solve and Write Subtraction Equations Solve. x – 2 = 3 What is the opposite of the variable side constant?

20. Solve and Write Subtraction Equations Solve. x – 2 = 3 +2 = +2

21. Solve and Write Subtraction Equations Solve. x – 2 = 3 Original Problem +2 = +2 x + 0 = 5 Work to be shown on homework.

22. Solve and Write Subtraction Equations Solve. x – 7 = 5 Do this on your own.

23. Solve and Write Subtraction Equations Solve. x – 7 = 5 +7 = +7 x + 0 = 12

24. Solve and Write Subtraction Equations Solve. 9 = a - 5 Do on your own.

25. Solve and Write Subtraction Equations Solve. 9 = a - 5 +5 = +5 14 = a + 0

26. Solve and Write Subtraction Equations Mike is 9 inches taller than Steve. If Steve is 55 inches tall, write a subtraction equation that could be used to find Mike’s height. Do this on your own.

27. Solve and Write Subtraction Equations Mike is 9 inches taller than Steve. If Steve is 55 inches tall, write a subtraction equation that could be used to find Mike’s height. M - 9 = 55 + 9= +9 M+0 = 64

28. Solve and Write Subtraction Equations Georgia’s height is 4 inches less than Sienna’s height. Georgia is 58 inches tall. Write and solve a subtraction algebraic equation to determine Sienna’s height. Do this on your own.

29. Solve and Write Subtraction Equations Georgia’s height is 4 inches less than Sienna’s height. Georgia is 58 inches tall. Write and solve a subtraction algebraic equation to determine Sienna’s height. S – 4 = 58 +4 = +4 S + 0 = 62

30. Solve and Write Subtraction Equations Raheem’s rollerblades cost $70.25 less than his bicycle. His rollerblades cost $43.50. Write and solve a subtraction algebraic equation to determine how much his bicycle cost. Do this on your own.

31. Solve and Write Subtraction Equations Raheem’s rollerblades cost $70.25 less than his bicycle. His rollerblades cost $43.50. Write and solve a subtraction algebraic equation to determine how much his bicycle cost. b – 70.25 = 43.50 +70.25 = +70.25 b + 0 = 113.75

32. Solve and Write Subtraction Equations Complete Mid-Chapter Check on page 546. Agenda Notes Homework – Homework Practice 7-3 Due Friday, Dec 13 Mid-Chapter 7 Quiz –Friday, Dec 13