Expressions & Equations Quiz #2

Solve the following equation for the missing variable:

2x - 14 = -9

What value of x makes the following equation true?

-6(6 - 4) = 54

What is the solution to the equation shown below?

4 ( 3x -0.2) + 3.8 = 39

• x = 2.95

• x = 2.87

• x = 3

• x = -3

5. Which student wrote an equation in which x = 4 is NOT a solution?

Anna: 2x - 1.2 = 6.8

Bernice: 3x + 5 = 7

• Anna only

• Bernice only

• Both Anna and Bernice

• Neither Anna nor Bernice

Sammy is solving the equation below. Which step should Sammy complete first?

x/2 + 8 = -24

• Add 8 to both sides

• Subtract 8 from both sides

• Multiply both sides by 1/2

• Divide both sides by 1/2

Find the value of x needed to make the equation modeled below true.

A pizza shop charges $7 for a cheese pizza and $1.50 per topping. The total charge for Megan's pizza was $11.50. Write and solve an equation to determine how many toppings Megan ordered on her pizza.

• What does the variable represent in this situation?

• The number of toppings

• The number of pizzas

• The cost of the toppings

• The total cost

A pizza shop charges $7 for a cheese pizza and $1.50 per topping. The total charge for Megan's pizza was $11.50. Write and solve an equation to determine how many toppings Megan ordered on her pizza.

Which equation can be used to determine how many toppings Megan ordered on her pizza?

• 7 + 1.5 = 11.5

• 7t + 1.5 = 11.5

• 1.5t + 7 = 11.5

• 7t + 1.5t = 11.5

A pizza shop charges $7 for a cheese pizza and $1.50 per topping. The total charge for Megan's pizza was $11.50. Write and solve an equation to determine how many toppings Megan ordered on her pizza.

How many toppings did Megan order on her pizza?

Allen and his two brothers decide to purchase a video game system together. They determine that each person will need to pay $32.30. How much is the cost of the video game system?

What does the variable represent in this problem?

• $32.30

• The number of people

• The cost of one video game

• The total cost of the video game system