Solving Multi Step Equations with Algebra Tiles

The video tutorial demonstrates solving the equation 2x + 3 = 7. It begins by introducing the problem and explaining the goal of isolating the variable X. The teacher uses zero pairs to simplify the equation, leaving 2x = 4. The next step involves dividing both sides to find the value of X, which is 2. Finally, the solution is verified by substituting X back into the original equation to ensure it holds true.

What is the initial equation discussed in the video?

• x + 2 = 7

• 2x + 3 = 5

• 2x + 3 = 7

• 3x + 2 = 7

Tags

CCSS.7.EE.B.4A

What operation is performed to start isolating x?

• None of the above

• Subtracting three tiles

• Multiplying by two

• Adding three negative tiles

Tags

CCSS.7.EE.B.4A

What is the result after adding negative tiles?

• 3x = 4

• 2x = 3

• 2x = 4

• x = 4

Tags

CCSS.6.EE.B.7

What does the equation simplify to after adding negative tiles?

• x = 4

• 2x = 5

• 2x = 4

• 3x = 4

Tags

CCSS.6.EE.B.7

How is x isolated further after forming zero pairs?

• Dividing each side by 2

• Adding 2 to each side

• Multiplying each side by 2

• Subtracting 2 from each side

Tags

CCSS.7.EE.B.4A

What value of x is determined from the operations?

• x = 1

• x = 2

• x = 4

• x = 3

What mathematical operation is used to find the value of x from 2x = 4?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.HSA.REI.A.1

How is the solution verified?

• By dividing the equation by x

• By multiplying the equation by x

• By adding x to the equation

• By substituting x back into the original equation

Tags

CCSS.8.EE.C.7B

What is the final check equation used for verification?

• 3x + 3 = 7

• 2x + 2 = 7

• x + 3 = 7

• 2x + 3 = 7

Tags

CCSS.6.EE.B.5

What is the result when x = 2 is plugged into the equation?

• 8 = 8

• 7 = 8

• 7 = 7

• 6 = 7