2. Example 1: Solve a Multiplication Equation
Main Idea
Example 1: Solve a Multiplication Equation
Key Concept: Division Property of Equality
Key Concept: Multiplication Property of Equality
Example 2: Solve a Division Equation
Example 3: Real-World Example
Lesson Menu

3. Solve equations by using the Division and Multiplication Properties of Equality.
Main Idea/Vocabulary

4. Solve a Multiplication Equation
Solve 7z = –49.
7z = –49 Write the equation.
z = –7 7 ÷ 7 = 1 and –49 ÷ 7 = –7
Divide each side of the equation by 7.
Answer: z = –7
Example 1

5. Solve –40 = –8r.
A. –36
B. –5
C. 5
D. 320
Example 1 CYP

6. Key Concept 2

7. Key Concept 2a

8. Solve a Division Equation
Write the equation.
Multiplication Property of Equality
–6 • 9 = –54
Answer: c = –54
Example 2

9. Solve = 2.
___ n
–11
A. –22
B. –9
C. 9
D. 22
Example 2 CYP

10. Division Property of Equality
TRAVEL Carlos lives 4 times the distance Jeremy lives from school. Carlos lives 9 miles from school. How far does Jeremy live from school?
Let d represent the distance that Jeremy lives from school. So, 9 = 4d.
9 = 4d Write the equation.
2.25 = d 9 ÷ 4 = 2.25
Division Property of Equality
Answer: Jeremy lives 2.25 miles from school.
Example 3

11. BOUNCES The first bounce of a ball is 2
BOUNCES The first bounce of a ball is 2.4 times higher than the second bounce. If the second bounce was 20 inches high, what was the height of the first bounce?
A. 8.3 in.
B in.
C. 40 in.
D. 48 in.
Example 3 CYP