2. 



Your friend’s mountain bike cost $245 more
than his skateboard. His mountain bike cost
$290. How much did your friend’s skateboard
cost?
Write an equation and solve
Log into your chrome book
Go to:
◦ http://lcmath7.blogspot.com/

Click on your hour and post your thoughts…

3. 
Adding and Subtracting Integers

Properties of addition

Multiplying and Dividing Integers

Solving one-step equations with addition
and subtracting

4. 
Discuss…
◦ What is the goal when solving equations?
◦ What are the steps to solve this problem?
◦ What allows me to do those steps?
 Properties?
 Concepts?

5. 
Students will learn to…
◦ Solve one-step equations with multiplication and
division.

6. 
Integer Operations Assessment
◦ Thursday
◦ Friday

7. 
Inverse operation

Isolate the variable

Multiplication Property of Equality
◦ If you multiply each side of an equation by the
same number, the two sides remain equal.

Division Property of Equality
◦ If you divide each side of an equation by the
same nonzero number, the two sides remain
equal.

8. 
4x = 32
Goal: Isolate the
variable
Question: How can I
get the variable by
itself?
Think… What is the inverse operation of
multiplication
or
Think… What is the opposite of multiplying by
4?

9. 
4x = 32
4
4
x=8
Goal: Isolate the
variable
Question: How can I
get the variable by
itself?
Think… What is the inverse operation of
multiplication
or
Think… What is the opposite of multiplying by
4?

10. 
10x = 150
How did you get your answer?
Describe what you were thinking...
What was difficult about that concept?

11. 
10x = 150
10
10
x = 15
How did you get your answer?
Describe what you were thinking...
What was difficult about that concept?

12. Goal: Isolate the
variable

Question: How can
get the variable by
itself?
How did you get your answer?
Describe what you were thinking...
What was difficult about that concept?

13. Goal: Isolate the
variable

Question: How can
get the variable by
itself?
How did you get your answer?
Describe what you were thinking...
What was difficult about that concept?

14. Goal: Isolate the
variable
Multiply both sides by
3

How did you get your answer?
Describe what you were thinking...
What was difficult about that concept?

15. 
Can you solve one-step equations w/
multiplication and division????

16. 
pg. 356 #3-6, 24, 26
Solve one-step
equations w/
multiplication
and division.

17. 
http://lcmath7.blogspot.com/

Click on exit ticket

18. 
A number multiplied by three is 27.

A number divided by eight is two.

A number tripled and increased by ten is 22.

19. 




Adding and subtracting Integers
Multiplying and dividing Integers
Properties of Addition
Properties of Multiplication
Solving one-step equations

21. 
Students will learn to…
◦ Solve 2-step equations.

22. 
Discuss…
◦ What operations are involved in this problem?
◦ How many terms?
◦ In order of operations, what do we do first?
Solve 2 step
equations.

23. Without guess and check,
what steps are used to solve
this equation?
Goal: Isolate the
variable
Question: How
can I get the
variable by itself?
How is this process related to the order of
operations?
x=4

24. 
Order of Operations – backwards
◦ 1) Combine like terms
◦ 2) Undo addition or subtraction
◦ 3) Undo multiplication or division

Like terms: 3x + 5 + 5 = 22

25. 
Simplify by combining like terms
◦ 5x + 12 + (-9) = 8
◦ 5x + 3 = 8

Undo addition or subtraction
◦ 5x + 3 = 8
◦
- 3 = -3
◦ 5x = 5

Undo multiplication or division
◦ 5x = 5
◦ 5
5
◦ x=1

26. 
Simplify by combining like terms
◦ 2x + x + 10 = 25
◦ 3x + 10 = 25

Undo addition or subtraction
◦ 3x + 10 = 25
◦
- 10 = -10
◦ 3x = 15

Undo multiplication or division
◦ 3x = 15
◦ 3
3
◦ x=5

27. 

29. 