One-Step Equations Quiz Review

Select the following basic rules used for solving one step equations. You may choose more than one.

• Whatever you do to one side of the equation, you do the other side.

• Isolate the variable

• Always start on the left side, regardless of where the variable is

• Always do the inverse operation

• x =70

• x = 7

• x = 11

• x = 49

• x = 80

• x = 100

• x = 10

• x = 9

Write an equation that represents the right angle.

• 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:

• x = 20
• x = 7
• x = 10
• x = 3

Which choice describes the step needed to isolate the variable? (Tap outside of the gray box to see the equation.)

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.