What method is being used to solve the system of equations in this problem?

Solving Systems of Equations

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Mathematics
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9th - 10th Grade
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Hard

Thomas White
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Graphical Method
Equal Values Method
Substitution Method
Elimination Method
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two equations given in the problem?
y = 1/4x + 5 and y = 3x - 9
y = 1/2x + 5 and y = 2x - 9
y = 1/4x + 5 and y = 2x - 9
y = 1/4x + 5 and y = 2x + 9
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we set the two equations equal to each other?
To eliminate x
Because they both equal y
To simplify the equation
To find the slope
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of multiplying the entire equation by 4?
To find the value of y
To get rid of the fraction
To eliminate the variable x
To simplify the equation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the new equivalent equation after multiplying by 4?
x + 20 = 8x - 36
4x + 20 = 8x - 36
x + 5 = 2x - 9
4x + 5 = 8x - 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After simplifying, what equation do we get to solve for x?
20 = 7x + 36
20 = 8x - 36
20 = 8x + 36
20 = 7x - 36
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of x after solving the equation?
x = 9
x = 7
x = 10
x = 8
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