One and Two Step Equations

  If you are solving the equation$-3x\ =\ 24$ then you know the answer is going to be

• negative

• positive

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.

 $16\ =\frac{k}{11}$  

The variable, k, is being divided by 11. What step needs to be completed to isolate the variable k?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

Solve for p in the following equation:

4p = 16

• p = 12

• p = 64

• p = 3

• p = 4

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

Which equation has x=9 as a solution

• 4 + x = 12
• 5x = 45
• 2x = 20
• x + 7 = 26

What is the first step in solving the equation?

• Add 4 to each side
• Subtract 4 from each side
• Subtract 2y from each side
• Divide each side by 2y