Question 4
Use the Gauss-Jordan elimination process on the following system of linear equations to find the value of
x
.
a)
x
= -10
b)
x
= -21
c)
x
= -11
d)
x
= 8

12/20/2018
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e)
x
= -13
f)
None of the above.
Question 5
Use the Gauss-Jordan elimination process on the following system of linear equations to find the value of
z
.

3/5
Question 7
Use Gauss-Jordan elimination process to solve the following system of linear equations.

Question 6
Use Gauss-Jordan elimination process to solve the following system of linear equations.
= 2
= 3

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4/5

Question 8
Use Gauss-Jordan elimination process to solve the following system of linear equations.
a)
x
= 1,
y
= 7,
z
b)
x
= 2,
y
= 4,
z
c)
x
= 4,
y
= 6,
z
d)
No solution.
e)
Infinitely many solutions.
f)
None of the above.
= 2
= 1
= 0

Question 9
Given that the augmented matrix in row-reduced form below is equivalent to the augmented matrix of a
system of linear equations. Determine whether the system has a solution and find the solution(s) to the
system, if they exist.
(Note: The dotted vertical line in the matrix above should be a single vertical line.)

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5/5
e)
x
= 5,
y
= -2,
z
= 5
f)
None of the above.