Write the augmented matrix of the following system of equati

Write the augmented matrix of the following system of equations. {x - y - z = -9 - 6x + y - 8z = -1 -2x + 9y = 6 -7x - 7y + z = 0 What is the augmented matrix?

Solution

x-y-z=-9

-6x +y-8z=-1

-2x +9y +0z=6

-7x-7y+1z=0

Augmented matrix is

1    -1    -1     -9

-6    1     -8     -1

-2    9     0       6

-7    -7    1       0