The Matrix Associated with the Solution to a System of Linear

Multiple Choice

The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the
system, if it exists.
- $$\left[ \begin{array} { l l l | r } 1 & 0 & 0 & 3 \\0 & 1 & 0 & - 14 \\0 & 0 & 1 & 1\end{array} \right]$$

A) $x = 3 , y = - 14 , z = - 1$
B) $x = 3 , y = - 14 , z = 1$
C) $x = - 3 , y = - 14 , z = - 1$
D) $x = - 3 , y = - 14 , z = 1$