6-3a-Summer24

What method is being introduced in the video?

• Elimination

• Graphing

• Substitution

• Matrix

What is the first equation given in the example?

• 3x + y = 9

• 3x - y = 9

• x + 3y = 7

• x - 3y = 7

What is the second equation given in the example?

• x + 3y = 7

• x - 3y = 7

• 3x + 3y = 9

• 3x - y = 9

What operation is performed to eliminate one of the variables?

• Addition

• Division

• Multiplication

• Subtraction

What is the result of adding the two equations?

• 4x = 7

• 4x = 16

• x = 4

• x = 16

How do you solve for x after adding the equations?

• Subtract 4

• Add 4

• Divide by 4

• Multiply by 4

What value of x is found after solving the equation?

• x = 1

• x = 7

• x = 3

• x = 4

Which equation is used to substitute the value of x?

• x - 3y = 7

• x - y = 3

• 3x + 3y = 9

• x + y = 4

What is the first step after substituting x into the equation?

• Add 4 to both sides

• Subtract 4 from both sides

• Divide by 4

• Multiply by 4

What is the resulting equation after substituting x and simplifying?

• -3y = 3

• 3y = 3

• y = 3

• y = -3