Mastering Multi-Step Equations with Inverse Operations

The video tutorial covers solving equations using inverse operations, emphasizing the balance required in equations. It reviews the inverse operations for addition, subtraction, multiplication, and division. The tutorial provides a detailed example of solving an equation, checking the solution, and finding angle measures in a polygon. It concludes with a practice problem to reinforce the concepts.

What is the inverse operation of addition?

• Exponentiation

• Subtraction

• Division

• Multiplication

If you have multiplication in an equation, what is the inverse operation?

• Multiplication

• Addition

• Subtraction

• Division

In the equation 3x + 25 / 2 = 23, which term should be eliminated first?

• 3

• 25

• 2

• x

After multiplying both sides by 2 in the equation 3x + 25 / 2 = 23, what is the resulting equation?

• 3x + 25 = 46

• 3x + 25 = 23

• 3x = 21

• x = 7

What is the final value of x in the equation 3x + 25 / 2 = 23?

• 5

• 6

• 7

• 8

What is the sum of the angles in a polygon with five angles?

• 540 degrees

• 450 degrees

• 600 degrees

• 360 degrees

If angle 1 is B, angle 2 is B + 45, and angle 3 is 90 degrees, what is the value of B?

• 45

• 60

• 75

• 90

What is the measure of angle 4 if B = 90?

• 135 degrees

• 180 degrees

• 90 degrees

• 225 degrees

In the equation 5x - 3(x + 2) = -9, what is the first step to simplify the equation?

• Add 3 to both sides

• Subtract 2

• Distribute -3

• Divide by 5

What is the final value of x in the equation 5x - 3(x + 2) = -9?

• 0

• -1

• 1

• 2