Solving Two-Step Equations

In this video, Teacher G explains how to solve two-step equations by eliminating constants and coefficients. The video covers three examples: solving 2x + 5 = 21, 3B - 4 = 11, and -3x - 8 = 40. Each example is solved step-by-step, demonstrating the use of inverse operations to isolate the variable. The video concludes with a practice problem for viewers to try on their own.

What is the main goal when solving two-step equations?

• To convert it into a one-step equation

• To find the value of the variable

• To eliminate all variables

• To simplify the equation

What is the first step in solving a two-step equation?

• Multiply or divide to eliminate the coefficient

• Add or subtract to eliminate the constant

• Simplify both sides of the equation

• Convert the equation to a one-step equation

What is the inverse operation of subtraction?

• Multiplication

• Subtraction

• Division

• Addition

What is the inverse operation of multiplication?

• Addition

• Subtraction

• Multiplication

• Division

In the equation 2x + 5 = 21, what operation is used to eliminate the constant?

• Division

• Multiplication

• Subtraction

• Addition

After eliminating the constant in 2x + 5 = 21, what is the next step?

• Add 5 to both sides

• Multiply both sides by 2

• Subtract 5 from both sides

• Divide both sides by 2

In the equation 2x + 5 = 21, what is the result after subtracting 5 from both sides?

• 18

• 17

• 16

• 19

What is the coefficient of x in the equation 2x + 5 = 21?

• 1

• 4

• 2

• 3

In the equation 2x + 5 = 21, what is the final step to find x?

• Divide both sides by 2

• Multiply both sides by 2

• Subtract 5 from both sides

• Add 5 to both sides

What is the result of dividing 16 by 2 in the equation 2x + 5 = 21?

• 6

• 7

• 8

• 9