Solving Systems of Equations

The video tutorial explains how to solve systems of equations using the elimination method. It begins with an introduction to learning math without relying heavily on technology. The tutorial then delves into solving systems of equations, focusing on the elimination method. It explains how to manipulate equations by multiplying them to achieve opposite terms, allowing for the elimination of variables. The process of solving and simplifying the equations is demonstrated, followed by a conclusion summarizing the key points discussed.

What is the main objective of the lesson?

• To learn about history

• To learn advanced technology

• To understand the basics of physics

• To solve systems of equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method is introduced for solving systems of equations?

• Substitution method

• Graphical method

• Elimination method

• Matrix method

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first system of equations presented in the lesson?

• x - y = 2

• x - y = 1

• x + y = 3

• x + y = 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the goal when using the elimination method?

• To eliminate one variable

• To subtract the equations

• To multiply the equations

• To add the equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What should be done if the terms are not exactly the same with opposite signs?

• Divide one or both equations by a number

• Subtract a constant from both equations

• Multiply one or both equations by a number

• Add a constant to both equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the result of multiplying the first equation by -3?

• -3x - 3y = 9

• -3x - 3y = -9

• -3x + 3y = -9

• -3x + 3y = 9

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

After eliminating one variable, what is the next step?

• Add the equations

• Solve for the remaining variable

• Multiply the equations

• Divide the equations

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CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the value of y after solving the second system of equations?

• 20

• 8

• 5

• 12

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the final value of x in the second system of equations?

• 20

• 12

• 8

• 5

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CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.8.5

What is the concluding remark of the lesson?

• See you next time

• Thank you for watching

• Goodbye and subscribe

• Keep practicing

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CCSS.RI.6.3

CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.8.3

CCSS.RI.8.5