What is the primary goal when solving a system of three equations with three unknowns?

Solving Systems of Three Variables

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard

Olivia Brooks
FREE Resource
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To find where three lines intersect in two dimensions
To determine where three planes intersect in three dimensions
To calculate the sum of all variables
To graph the equations on a plane
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method is used initially to solve the system of equations in the video?
Graphical method
Substitution method
Elimination method
Matrix method
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
By scaling the third equation by 2, what variable does the teacher aim to eliminate?
x
z
y
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding the scaled equations to eliminate z?
No change in the number of variables
An equation in x and z
An equation in y and z
An equation in x and y
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is performed to eliminate y after z has been eliminated?
Addition of equations
Subtraction of equations
Multiplication of one equation
Division of one equation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of x found through elimination?
2
0
-1
1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After finding x, what is the next variable to solve for?
Both y and z simultaneously
z
None, as all variables are solved
y
Create a free account and access millions of resources
Similar Resources on Quizizz
11 questions
Solving Systems of Equations

Interactive video
•
9th - 12th Grade
11 questions
Understanding Nonlinear Equations

Interactive video
•
9th - 12th Grade
11 questions
Intersection of a Plane and a Line

Interactive video
•
9th - 12th Grade
11 questions
Solving and Factoring Polynomial Equations

Interactive video
•
9th - 12th Grade
7 questions
Understanding Spherical to Rectangular Equations

Interactive video
•
9th - 12th Grade
11 questions
Understanding Systems of Linear Equations

Interactive video
•
9th - 12th Grade
11 questions
Tangent Line Equations and Derivatives

Interactive video
•
9th - 12th Grade
11 questions
Matrix Equation Solving with Desmos

Interactive video
•
9th - 12th Grade
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
Discover more resources for Mathematics
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
10 questions
Right Triangles: Pythagorean Theorem and Trig

Quiz
•
11th Grade
10 questions
Exponential Growth and Decay Word Problems

Quiz
•
9th Grade
45 questions
Week 3.5 Review: Set 1

Quiz
•
9th - 12th Grade
17 questions
High School Survival Guide

Lesson
•
9th - 12th Grade
15 questions
Factoring Quadratics

Quiz
•
9th Grade