Review for 3.1-3.3 Quiz

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

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

Tags

CCSS.6.EE.B.7

y/3=12

• 36
• -36
• 4
• -4

Tags

CCSS.6.EE.B.7

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

3n + 4 = 7 

• 1
• -1
• 3.67
• 2

Tags

CCSS.7.EE.B.4A

9 = 2s + 1 

• 4
• -4
• 3.5
• 5

Tags

CCSS.7.EE.B.4A

4c - 6 = 2 

• 2
• -2
• 1
• 3

Tags

CCSS.7.EE.B.4A

8 = 4v + 12

• -1
• 1
• 0
• -10

Tags

CCSS.7.EE.B.4A

5d - 6 = 9

• 3
• -3
• 0.67
•  10

Tags

CCSS.7.EE.B.4A

-15 = 5a +12- 2a + 6

• -11
• -3
• 10
• 7

Tags

CCSS.8.EE.C.7B