Solving Linear Equations Using Substitution Method

This video tutorial covers solving systems of linear equations using the substitution method. The teacher introduces the topic, explains the substitution method, and provides two examples to demonstrate the process. The video concludes with a summary and encourages viewers to like and subscribe for more content.

What are the three methods mentioned for solving systems of linear equations?

• Graphical, substitution, elimination

• Addition, subtraction, division

• Matrix, determinant, vector

• Algebraic, geometric, numeric

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method is the focus of the tutorial?

• Graphical method

• Elimination method

• Matrix method

• Substitution method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

In the first example, what is the form of the first equation?

• y = 3x + 1

• x = 3y + 1

• x = y + 3

• y = x + 3

Tags

CCSS.6.EE.C.9

How do you find the value of x in the first example?

• Substitute y in the second equation

• Multiply both equations

• Use elimination method

• Graph the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the final value of x in the first example?

• 2/3

• 5/9

• 9/5

• 3/2

Tags

CCSS.8.EE.C.7B

How is the second example initially set up for substitution?

• Graphing both equations

• Using the elimination method

• Isolating x in the first equation

• Isolating y in the first equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the final value of x in the second example?

• 0

• 1

• 3

• 2

Tags

CCSS.8.EE.C.7B

What does the solution (2, 0) represent in the context of the second example?

• An error in calculation

• The maximum value of the system

• The point where both equations intersect

• The minimum value of the system

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Why is it important to verify the solution by substituting back into the original equations?

• None of the above

• To ensure the solution satisfies all equations

• To check for calculation errors

• Both A and B

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What action does the teacher encourage at the end of the video?

• Practice more problems

• Discuss with peers

• All of the above

• Subscribe and like the video

Tags

CCSS.RI.11-12.8

CCSS.RI.9-10.7

CCSS.RL.11-12.8

CCSS.RL.8.7

CCSS.RL.9-10.7