12/8: Review Day #2

Which property justifies the work between step 1 and step 2?

 $Step\ 1:\ \ \ \ \ 10-2k=k-5-3k$  

 $Step\ 2:\ \ \ \ \ \ 10-2k=-5-2k$  

• Distributive Property

• Combine Like Terms

• Multiplication Property of Equality

• Division Property of Equality

Which property justifies the work shown?

 $-12-8x=-10x$ 
 $-12=-2x$  

• Distributive Property

• Addition Property of Equality

• Subtraction Property of EQualoity

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.HSA.REI.A.1

Which property justifies the work shown?

 $8n+42=8\left(n+5\right)$ 
 $8n+42=8n+40$  

• Distributive Property

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.HSA.REI.A.1

Which property justifies the work shown?

 $8n+42=8n+40$  
 $8n+2=8n$  

• Distributive Property

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.HSA.REI.A.1

Sarah incorrectly solved the equation $-6\left(7n+7\right)=-294$  as shown.

Step 1:      -6(7n + 7) = -294
Step 2:       -42n - 42 = -294
Step 3:               -42n = -336
Step 4:                n = 8
Between which two steps did Sarah make a mistake?

• Step 1 and Step 2

• Step 2 and Step 3

• Step 3 and Step 4

Tags

CCSS.HSA.REI.A.1

Which operation will cancel out multiplication?

• A.  Addition
• B. Subtraction
• C. Multiplication
• D. Division

Tags

CCSS.HSA.REI.A.1

Select the inequality shown

• x > 1

• x ≥ 1

• x < 1

• x ≤ 1

Tags

CCSS.6.EE.B.8

Select the inequality shown

• x > 3

• x ≥ 3

• x < 3

• x ≤ 3

Tags

CCSS.6.EE.B.8

Select the inequality shown

• x > 0

• x ≥ 0

• x < 0

• x ≤ 0

Tags

CCSS.6.EE.B.8

Does the sign need to flip when solving?
-2x ≥ 22

• YES
• NO

Tags

CCSS.6.EE.B.8