One-Step Equations

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.

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.

y/3=12

• 36
• -36
• 4
• -4

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

Twice a number is 24.

• 2n = 24
• 2/n = 24
• 2 + n = 24
• 2 - n = 24

What does "difference" mean?

• add
• subtract 
• multiply
• divide

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13

• x = 20
• x = 7
• x = 10
• x = 3

Solve for y:
y - 7 = 10

• 17
• -3
• 3
• -17