Algebra Quiz

Solve. 50 = 2x + 12

x = ?

(a)  

Answer explanation

Solve. -3x + 8 > 11​ (a)  

• x < -1
• x > -1
• x = -1
• x < 1
• x > 1

Solve. 15x + 60 < 240​

x​ ​ (a)   12

• <
• >

Tags

7.11.A

If x = -1, then which of the following equations makes a true statement?

• 4x + 9 = 20

• -4x - 5 = -15

• -3x + 15 = 18

• -5x - 15 = -22

Tags

7.11.A

A plumber charges $55 for a service call, plus $35 per hour. Which of the following equations best represents the number of hours a plumber was at a service call if he charged $160?

• 55 + 35x = 160

• 55x + 35 = 160

• 90x = 160

• 55 - 35x = 160

Tags

7.11.A

The model below represents an equation. What is the solution for the equation?

​ (a)  

• x = 6
• x = 2
• x = -6
• x = -2

An air conditioning repair service charges $85.00 per hour, plus a diagnosis fee of $75.00. If the repair costs a total of $385.00, which of the following equations best represents the situation?

• 75x + 85 = 385

• 85x + 75 = 385

• 85x - 75 = 385

• 75x - 85 = 385

Tags

7.11.A

Which number line best represents the solution to the problem below? -x - 8 > 16

• 
• 
• 
• 

Solve the problem below. Be sure to show your thinking. Solve: 5x + 9 = 65.

x = ?

(a)  

Solve the problem below. Be sure to show your thinking. Solve: -3x + 12 < 18.

x ​ ​ ​ (a)  

• > -2
• < -2
• < 2