Equations from Visual Models

1. What is a variable?

• A letter

• A number

• A symbol

2. If the hanger is balanced, the equation is

• not equal

• equal

3. Which of these is a variable?

• 9

• M

• =

4. What is the variable in the following equation: 4-r=2

• 4

• r

• 2

5. What is the equation for the following hanger?

• 2x=3

• 2-x=3

• 3x=2

6. What is the equation for the following hanger?

• 27=b-9

• 27=b+9

• 27+b=9

7. Write the equation for the following hanger:

8. Write the equation for the following hanger:

9. What is the solution to the problem: 2b=10

• b=2

• b=10

• b=5

10. What is the solution to the problem: 18-a=4

• a=8

• a=14

• a=4