One-Step Equations Review

5 n = 30

• n = 150

• n = 25

• n = 5

• n = 6

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 for x in the following equation:

20.5 = x + 4

• 16.5

• 16.05

• 24.5

• 24.05

Solve for y in the following equation:

y ÷ 3 = 12

• 36

• -36

• 4

• -4

Solve for z in the following equation:

z - 33 = 147

• z= 114

• z = 177

• z = 180

• No Solution

Solve for x in the following equation:

x + 7 = 12

• x = 5

• x = 19

• x = 4

• x = 84

Solve for p in the following equation:

4p = 16

• p = 12

• p = 64

• p = 3

• p = 4

Solve for the variable (a) in the following equation:

32 = -8a

• 4

• -4

• 40

• 24

Which equations has w = 8 as the solution? (can be more than one equation)

• 8w= 64

• 16w = 240

• 8 - w = 16

• 48 ÷ w = 6

Which equation best describes the situation below?

5 less than a number is 15.

• x - 5 = 15

• 5 - x = 15

• 15 - x = 5