Write the System of Linear Equations Represented by the Augmented $\left[ \begin{array} { r r r | r } 6 & 9 & 6 & - 2 \\ 2 & 0 & 7 & 4 \\ 6 & 8 & 0 & 2 \end{array} \right]$

Multiple Choice

Write the system of linear equations represented by the augmented matrix. Use x, y, z, and, if necessary, w for the
variables.
- $\left[ \begin{array} { r r r | r } 6 & 9 & 6 & - 2 \\ 2 & 0 & 7 & 4 \\ 6 & 8 & 0 & 2 \end{array} \right]$

A) $6 x + 9 y + 6 z = - 2$
$2 x + 7 z = 4$
$6 x + 8 y = 2$
B) $6 x - 9 y + 6 z = - 2$
$2 x + 7 z = - 4$
$6 x + 8 y = - 2$
C) $6 x + 9 y + 6 z = - 2$
$2 x + 7 z = 4$
$6 x + 8 z = 2$
D) $6 x + 9 y + 6 z = - 2$
$2 x + y + 7 z = 4$
$6 x + 8 y + z = 2$