Equations & Inequalities

50 = 2x + 12

• x=31

• x=19

• x=14

• x > 50

Tags

CCSS.7.EE.B.4A

-3x + 8 > 11

• x = 3

• x > -5

• x > -1

• x < -1

Tags

CCSS.7.EE.B.4B

15x + 60 < 240

• x > 12

• x < 45

• x > -8

• x < 12

Tags

CCSS.7.EE.B.4B

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

• -3x + 15 = 18

• -4x - 5 = -15

• -5x - 15 = -22

• 4x + 9 = 20

Tags

CCSS.6.EE.B.5

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

• 55 - 35x = 160

• 90x = 160

• 55x + 35 = 160

• 55 + 35x = 160

Tags

CCSS.HSA.CED.A.3

The cable guy charges $85 per hour, plus a hook up fee of $75. Altogether, the total cost is $385.00. Which of the following equations best represents the situation?

• 75x - 85 = 385

• 85x - 75 = 385

• 85x + 75 = 385

• 75x + 85= 385

Tags

CCSS.HSA.CED.A.3

65 = 5x + 9

• x = 11.2

• x = -15

• x = -11.2

• x = 15

Tags

CCSS.7.EE.B.4A

2x + 3 = 8

• x = 5

• x = 5.5

• x = 2.5

• x = -5

Tags

CCSS.7.EE.B.4A

2x + 20 = 43

• x = 11

• x = 12

• x = 10.5

• x = 11.5

Tags

CCSS.7.EE.B.4A

The equation 100 - 5x = 60, is best represented by which of the following situations below?

• During basketball practice, the team runs a drill in which they begin with 100 points and earn 5 points each time they get make a lay-up. How many points will they have after 60 lay-ups?

• Susan has $100 in her account. Each week she earns $5 for doing her chores. How many weeks will it take her to build up her account to have $60?

• Mike has won 100 tickets at a carnival. He can trade in 5 tickets for a small stuffed animal. How many stuffed animals can Mike get and still have 60 tickets remaining?

Tags

CCSS.HSA.CED.A.3