the reduced row echelon form of the augmented matrix of a system of equations is given. find the solutions of the system.
left bracket start 4 by 5 table 1st row 1st column 1 2nd column 0 3rd column 0 4st column 9 5st column 14 2nd row 1st column 0 2nd column 1 3rd column 0 4st column 8 5st column negative 5 3rd row 1st column 0 2nd column 0 3rd column 1 4st column 0 5st column negative 3 4st row 1st column 0 2nd column 0 3rd column 0 4st column 0 5st column 0 endtable right bracket
1 0 0 9 14
0 1 0 8 ? 5
0 0 1 0 ? 3
0 0 0 0 0

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