One-Step Equations and Inequalities Review

x + 9 = 14

• x = 6
• x = -6
• x = 23
• x = 5

c - 18 = 24

• c = 42
• c = 6
• c = -6
• c = 1.3

What are the variable(s) for the equation

x + 3y + 5z = 9

• x, y, z

• x, z

• x, y

• x, 3y, 5z

What inequality does the number line graph represent

• x ≤ 4

• x ≥ -4

• x < -4

• x > 4

What inequality does the number line graph represent?

• x ≥ 3

• x > 3

• x < 3

• x ≤ 3

Which of the following shows the inequality solved and graphed correctly?

• A

• B

• C

• D

Which of the following shows the inequality solved and graphed correctly?

• A

• B

• C

• D

Tomorrow's temperature will be twice today's temperature, but will be less than 88 degrees. Which inequality correctly shows today's temperature?

•  $2t<88$  

•  $2t\le88$  

•  $2t>88$  

•  $2t\ge88$  

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• t - 9 = 25

• t + 9 = 25

• 9t = 25

• t/9 = 25

Which choice describes the step needed to isolate the variable? (Tap outside of the gray box to see the equation.)

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.