
Understanding and solving linear equations in three variables

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Wayground Content
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
x + y + z = 4
x = -2y
z = -3y
Solve the system of equations using substitution.
y = -1
z = 3
y = 3
z = 1
y = -2
z = 0
y = 1
z = -1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2x + 3y + z = 27
x + 5y - 3z = 52
-3x + y + 2z = -16
Solve for x + y.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solve the system:
x+y-z= -1
4x-3y+2z=16
2x-2y-3z=5
(3, -1, 2)
(-1, 4, 2)
(-2, 2, -1)
(2, -2, 1)
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given system of linear equations:
The value of
- 4
- 3
- 2
2
4
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
y=2
z=-2
y=1
z=-1
y=-1
z=-2
y=2
z=-1
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve the system of equations, and sum up the x, y, and z for the final answer below:
6, x is the smallest number
6, z is the smallest number
-6, z is the smallest number
-6, x is the smallest number
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