One-Step Equations Review

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13

x - 8 = -5 

• 13
• -13
• 3
• -3

7 + g = 11

• g = 4

• g = -4

• g = 18

• g = -18

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.

• Divide both sides by 11

• Multiply both sides by 11

• Add 11 to both sides

• Subtract 11 to both sides

• 36

• -36

• 4

• -4

The inverse operation of addition is ??????????

• addition

• subtraction

• multiplication

• division

The inverse operation of subtraction is ??????????

• addition

• subtraction

• multiplication

• division

The inverse operation of multiplication is ??????????

• addition

• subtraction

• multiplication

• division

The inverse operation of division is ??????????

• addition

• subtraction

• multiplication

• division