Solve One Step Addition Equation

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

What is the value of x?

x + 15 = 30

• 2

• 1/2

• 15

• 45

Tags

CCSS.6.EE.B.7

What is the value of a?

a + 16 = 9

• 25

• -7

• 144

• 9/16

Tags

CCSS.8.EE.A.2

What is the value of r?

r - 4 = 2

• 6

• 3

• 10

• 100

Tags

CCSS.7.EE.B.4A

Solve the equation:
-3 + x = -12

• x = 9 

• x = -15

• x = -9

• x = 15

Tags

CCSS.6.EE.B.7

Solve the equation:
-2.6 + x = -4.6

• x = 2

• x = -2

• x = 7.2

• x = -7.2

Tags

CCSS.6.EE.B.7

Solve for y:

y + 51 = 99

• 140

• 150

• 48

• Answer not Given

Tags

CCSS.6.EE.B.7

Solve for y

y - 14 = 66

• 80

• 52

• 79

• 63

Tags

CCSS.6.EE.B.7

Solve for y:

y - 33 = 147

• y = 114

• y = 177

• y = 180

• Answer not Given

Tags

CCSS.6.EE.B.7

Solve the equation:
x - 5.5 = 10.5

• x = 15

• x = 14

• x = 16

• x = 15.5

Tags

CCSS.6.EE.B.7