Algebra One

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.HSA.REI.A.1

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Tags

CCSS.6.EE.B.7

x - 32 = 49

• x = 17

• x = 71

• x = 81

• x = 49

Tags

CCSS.6.EE.B.7

10x = 90

• x = 80

• x = 100

• x = 10

• x = 9

Tags

CCSS.6.EE.B.7

8 = x - 1

• x = 8

• x = 1

• x = 7

• x = 9

Tags

CCSS.6.EE.B.7

x - 18 = 3

• x = 37

• x = 15

• x = -21

• x = 21

Tags

CCSS.6.EE.B.7

What does 2x mean?

• 2 + x

• 2 - x

• 2 times x

• 2 divided by x

Tags

CCSS.6.EE.A.2A

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Tags

CCSS.6.EE.B.7

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

Tags

CCSS.6.EE.B.7