Unit 2

l 2z+21 l = 33 (Absolute bars)

• z=5 and z=-26

• z=6

• z=6 and z=-27

• z= 5

−2|−2r − 4| = -12

• {5,1}
• {-5,-1}
• {-5,1}
• No Solution

Tags

CCSS.7.EE.B.3

 |−2n| + 10 = −50

• {30, -30}
• {20,-20}
• {-5,5}
• No Solution

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

5∣ x ∣ - 8 = 2

• x = 5
  x = 2
• x = 2
  x = -2
• x = -5
  x = 10
• x = 18
  x =  -18

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

Mallory bought pizza and soda for a party. If she spent $12.57 on the sodas and $10.95 for each pizza, how many pizzas did she buy if her total is $89.22?

• 10.95x + 12.57 = 89.22

• 12.57x + 10.95 = 89.22

• 89.22x -10.95 = 12.57

• 12.57 + 10.95 = 89.22

Tags

CCSS.7.EE.B.4A

Marcie charges $15 per hour to babysit. Mrs. Johnson gave her $105 after a day of babysitting. Write an equation that can be used to determine how many hours Marcie babysat.

• 15x=105

• 15+x=105

• 105x=15

• 105-x=15

Tags

CCSS.HSA.CED.A.3

Nick scored 18 points in a game. Ricardo scored 2 times as many points as Nick. Which equation can be used to determine the number of points, ^p, Ricardo scored?

• p−2=18

• 18−2=p

• ½ p=18

• 2p=18

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve the equation:
3x - x + 2 = 4(2x - 1)

• infinite solutions
• x = 1
• x = -1
• no solution

Tags

CCSS.8.EE.C.7A

Which of the equations has no solution?

• 2x + 1 = 5x - 3
• 2(x - 7) = 2x-14
• 3(2x+1) = 6x+1
• 15x - 30 = 0

Tags

CCSS.8.EE.C.7A