Solving Addition Equations Involving Decimals

The video tutorial explains how to solve one-step equations by isolating the variable. It demonstrates solving equations with whole numbers and decimals using inverse operations, specifically subtraction. The tutorial emphasizes the importance of maintaining equality by performing operations on both sides of the equation and verifies solutions by substitution.

What is the primary goal when solving a one-step equation?

• To add numbers to both sides

• To divide both sides by the variable

• To isolate the variable

• To multiply both sides by zero

Which operation is used to isolate X in the equation X + 8 = 11?

• Division

• Subtraction

• Addition

• Multiplication

How can you verify the solution of an equation?

• By adding random numbers

• By substituting the solution back into the original equation

• By dividing the solution by two

• By multiplying the solution by zero

What is the inverse operation of adding 8.5 in the equation X + 8.5 = 11.8?

• Dividing by 8.5

• Multiplying by 8.5

• Subtracting 8.5

• Adding 8.5

What is the solution to the equation X + 8.5 = 11.8?

• X = 4.3

• X = 5.3

• X = 2.3

• X = 3.3