Question: Solve a system of linear equations represented by the augmented matrix. 1 0 0 7 0 1 0 -9 0 0 1 1/9 a. x

Solve a system of linear equations represented by the augmented matrix.

1 0 0 7

0 1 0 -9

0 0 1 1/9

a.x= -7

y= 9

z = -1/9

b.x= 7

y= -9

z=1/9

c.x= 7

y= 9

z =1/9

d.x= -7

y= -9

z =1/9

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