Equations and Inequalities

Solve:
 $3x+15=3\left(x+5\right)$  

• No Solution

• x = 15

• All Real Numbers

• x = 0

Tags

CCSS.8.EE.C.7A

Judy is saving to buy a pair of shoes that cost $120. She has saved $30 and is going to save $25 a week. Which equation will show her how many weeks she must save?

• 120 = 25x + 30

• 120 = 55x

• 120 = 25x + 30x

• 25x = 120 + 30

Tags

CCSS.HSA.CED.A.3

Solve:
 $2x+1=2x-1$  

• No Solution

• x = 0

• All Real Numbers

• x = -1

Tags

CCSS.8.EE.C.7A

 $\frac{3}{4}x+\frac{2}{5}=x-\frac{7}{10}$  

•  $\frac{22}{5}$  

•  $\frac{5}{22}$  

•  $\frac{22}{15}$  

•  $\frac{11}{4}$ 

Tags

CCSS.8.EE.C.7B

 $3+\frac{1}{4}a=31$  

• a = 28

• a = 112

• a = 7

• a = 67

Tags

CCSS.7.EE.B.4A

Solve:
3(x - 2) < 2(x + 9)

• x<24
• x>12
• x<12
• x>24

Tags

CCSS.6.EE.B.8

CCSS.6.EE.B.5

Solve:
7(x + 3) < 5x + 13

• x>-4
• x < 17
• x<-4
• x > -17

Tags

CCSS.6.EE.B.8

CCSS.6.EE.B.5

You flip an inequality symbol when you...

• subtract
• multiply and divide only
• multiple by a negative number
• multiple or divide by a negative number

Tags

CCSS.6.EE.B.8

Your family needs 2 gallons of water this week, but you don’t want to buy any more than 8 gallons. Write an inequality representing the possible gallons of water you could buy this week.

• 2 ≤ x ≤ 8
• 2< x < 8
• 8 ≥ x ≥ 2
• 2> x > 8

Tags

CCSS.6.EE.B.8

CCSS.6.EE.B.5

CCSS.6.EE.B.6