one and two step equation review

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 h in the following equation:

0 = 4h

• h = 4

• g = 1

• g = -4

• g = 0

Which equation best describes the situation below?

5 less than a number is 15.

• x - 5 = 15

• 5 - x = 15

• 15 - x = 5

Solve for x in the following equation:
 $\frac{x}{-4}$  = 9

• 13

• 36

• -36

•  $\frac{-4}{9}$  

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

32 = -8a

• 4

• -4

• 40

• 24

What would be the best first step when solving for x in the problem below:

 $\frac{x}{9}=50$  

• Add 9 to both sides.

• Subtract 9 from both sides.

• Multiply 9 on both sides.

• Divide 9 on both sides.

Select the two methods that can be used to solve the algebraic equation.

-2x = 12

• Add -2 to each side

• Multiply each side by -2

• divide each side by -2

• Multiply each side by -1/2

• Add -1/2 to each side

Which method can be used to solve the algebraic equation below?

z - 6 = 13

• Subtract 6 from both sides of the equation

• Add six to both sides of the equation

• Subtract 13 from both sides of the equation

• Add 13 to both sides of the equation

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.