
Elimination Method in Solving Systems of Equations

Interactive Video
•
Mathematics
•
8th - 10th Grade
•
Hard

Sophia Harris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is substitution not ideal in this problem?
Because it involves solving for a variable with a coefficient of one.
Because it leads to complex fractions.
Because it requires graphing the equations.
Because it is not a valid method for this type of problem.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of the elimination method?
To find the common multiple of the coefficients.
To graph the equations.
To eliminate one of the variables by adding or subtracting the equations.
To solve for one variable directly.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the elimination method?
Solve for one variable.
Find the common multiple of the coefficients.
Graph the equations.
Check if the equations are consistent.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the common multiple of 4 and 3?
15
6
9
12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it necessary to make one of the coefficients negative when adding the equations?
To ensure the equations are consistent.
To eliminate the variable by making the sum zero.
To simplify the equations.
To avoid fractions.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding 9x + 12y = 30 and -8x - 12y = -28?
x = 0
x = -2
x = 2
x = 1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After finding x, what is the next step?
Substitute x back into one of the original equations.
Graph the equations.
Check for consistency.
Solve for another variable.
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