Ellis Solving One Step Equations

3w = 15

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.

Solve the equation:
20.5 = x + 4

• 16.5

• 16.05

• 24.5

• 24.05

y/3=12

• 36

• -36

• 4

• -4

y - 33 = 147

• y = 114

• y = 177

• y = 180

• Answer not Given

Solve the equation:
4p = 16

• p = 12

• p = -12

• p = -4

• p = 4

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

Solve the equation:
x - 4 = 6

• x = 10

• x = -10

• x = 2

• x = -2

Solve the equation: 
x + 7 = 12

• x = 5

• x = 19

• x = -5

• x = 84

What is the variable in this equation?

13 + q = 56

• +

• 40

• q

• 42