Solving two step equations with a decimal

The video tutorial explains how to use inverse operations to solve equations. It focuses on isolating the variable by undoing operations applied to it. The example equation X / 7 - 0.5 = 2.5 is solved by first adding 0.5 to both sides using the addition property of equality, and then multiplying both sides by 7 to isolate X. The tutorial concludes with a review and addresses questions from the audience.

What is the purpose of using inverse operations in solving equations?

• To isolate the variable

• To make the equation more complex

• To add more variables

• To change the variable

In the equation X / 7 - 0.5 = 2.5, what is the first step to isolate the variable?

• Add 0.5

• Subtract 0.5

• Multiply by 7

• Divide by 7

What property is used when adding the same number to both sides of an equation?

• Multiplication property of equality

• Subtraction property of equality

• Addition property of equality

• Division property of equality

After simplifying the equation to X / 7 = 3, what operation should be performed next?

• Add 7

• Multiply by 7

• Subtract 7

• Divide by 3

What is the final value of X in the equation X / 7 - 0.5 = 2.5?

• 7

• 21

• 3

• 14