One-Step Equations

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 following equation.

20.5 = x + 4

• x = 16.5

• x = 16.05

• x = 24.5

• x = 24.05

 $Solve\ the\ following:\ \ \frac{y}{3}=12$  

•  $y=36$  
  

•  $y=-36$  
  

•  $y=4$  
  

•  $y=-4$  
  

Solve the following equation.

y - 33 = 147

• y = 114

• y = 177

• y = 180

• Answer not Given

Solve the following equation.

0 = 4h

• h = 4

• g = 1

• g = -4

• g = 0

Which equation has w = 8 as the solution?

• 8w= 64
• 16w = 240
• 16 - w = 9
• 4 + w = 10

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• Answer not Given

Write the equation you would use to solve this problem.

Five less than a number is fifteen.

• x - 5 = 15

• 5 - x = 15

• 15 - x = 5

Write the equation you would use to solve this problem.

Two more than four times a number is -18.

• 4x + 2 = -18

• 2x + 4 = -18

• 18 = 4x +2

Write the equation you would use to solve this problem.

Twice a number is 24.

• $2n=24$
  

• $\frac{2}{n}=24$

• $2+n=24$
  

• $2-n=24$