Mastering One-Step Equations with Inverse Operations

What is the main goal when solving any equation?

• To isolate the variable

• To balance both sides of the equation

• To add numbers to both sides

• To multiply both sides by the same number

Which of the following pairs are inverse operations?

• Addition and multiplication

• Subtraction and division

• Addition and subtraction

• Multiplication and addition

In the equation X + 5 = 9, what operation would you use to isolate X?

• Add 5 to both sides

• Subtract 5 from both sides

• Multiply both sides by 5

• Divide both sides by 5

If you have the equation X - 3 = 8, what should you do to isolate X?

• Divide both sides by 3

• Multiply both sides by 3

• Add 3 to both sides

• Subtract 3 from both sides

In the equation 6X = 18, what operation would you use to isolate X?

• Divide both sides by 6

• Multiply both sides by 6

• Subtract 6 from both sides

• Add 6 to both sides

For the equation X/3 = -2, what operation would you use to isolate X?

• Add 3 to both sides

• Divide both sides by 3

• Subtract 3 from both sides

• Multiply both sides by 3

What is the multiplicative inverse of 1/5?

• 5

• 1/5

• 1

• 0

In the equation (1/3)X = 7, what operation would you use to isolate X?

• Multiply both sides by 3

• Multiply both sides by 1/3

• Divide both sides by 1/3

• Add 3 to both sides

In the practice problem X + 9 = 18, what is the value of X?

• 0

• 27

• 18

• 9

In the practice problem X/5 = 11, what is the value of X?

• 55

• 11

• 1

• 5