What is the first step in solving a system of equations by substitution?

Exploring Systems of Linear Equations in Algebra II

Interactive Video
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Mathematics
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8th - 12th Grade
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Hard

Liam Anderson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Substitute one equation into the other
Multiply both equations by a constant
Add the equations together
Divide both equations by a constant
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the substitution method, what should you do if neither equation is solved for a variable?
Divide both equations by a constant
Multiply both equations by a constant
Solve one of the equations for a variable
Add the equations together
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of the elimination method?
To divide both equations by a constant
To add the equations together
To eliminate one of the variables
To multiply both equations by a constant
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using the elimination method, what should you do if adding the equations does not eliminate a variable?
Add a different pair of equations
Multiply one or both equations by a constant
Subtract one equation from the other
Divide both equations by a constant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a 3x3 system, what is the first step after writing down the equations?
Eliminate one variable from two pairs of equations
Divide all equations by a constant
Multiply all equations by a constant
Add all three equations together
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of creating a new 2x2 system from a 3x3 system?
To solve for one variable
To simplify the equations
To eliminate all variables
To make the system easier to solve
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving a 3x3 system, why is it important to eliminate the same variable from two pairs of equations?
To ensure the equations are balanced
To reduce the number of variables
To simplify the arithmetic
To create a consistent system
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