Use the Gauss-Jordan Method to Solve the System of Equations $9 x+6 y-z=60$

Multiple Choice

Use the Gauss-Jordan method to solve the system of equations.
- $9 x+6 y-z=60$
$x+5 y+3 z=55$
$-7 \mathrm{x}+\mathrm{y}+\mathrm{z}=5$

A) No solution
B) $(1,9,3)$
C) $(1,3,9)$
D) $(-1,9,2)$