# Question 4 use the gauss jordan elimination process

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Question 3   Which of the following matrices are in row-reduced form ? ( Note : The dotted vertical line in each matrix should be a single vertical line . ) I. II . III .
a) I and III only
b) II and III only
c) All of them
d) None of them
e) I and II only
f) None of the above .
Question 4   Use the Gauss - Jordan elimination process on the following system of linear equations to find the value of x .
Question 5   Use the Gauss - Jordan elimination process on the following system of linear equations to find the value of z .
Question 6   Use Gauss - Jordan elimination process to solve the following system of linear equations .
Question 7   Use Gauss - Jordan elimination process to solve the following system of linear equations .
a) x = - 1 , y = - 6
b ) x = 1 , y = - 4
c) Infinitely many solutions .
d) x = - 2 , y = - 3
e) No solution .
f) None of the above .
Question 8   Use Gauss - Jordan elimination process to solve the following system of linear equations .