Why did the instructor choose the elimination method for solving the system of equations?
Tutorial - How do we solve a system of linear equations using any method 2x-3y=8, -4x+5y=-10

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Mathematics
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11th Grade - University
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Hard
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Because the equations were already in standard form.
Because the coefficients of the variables were easy to manipulate.
Because the variables were already isolated.
Because the variables had coefficients of one.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the least common multiple (LCM) used for the coefficients of X in the given system?
8
2
4
6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if the coefficients of the variables in two equations have opposite signs?
Divide the equations.
Add the equations.
Subtract the equations.
Multiply the equations.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After eliminating one variable, what is the next step in solving the system of equations?
Check the solution with a calculator.
Substitute the value back into one of the original equations.
Multiply the equations again.
Graph the equations.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the solution to the system of equations as found by the instructor?
X = -5, Y = 6
X = 5, Y = -6
X = -5, Y = -6
X = 5, Y = 6
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