A) $X = \left[ \begin{array} { l } \frac { 1 } { 16 } \\\frac { 85 } { 16 } \\- \frac { 13 } { 16 }\end{array} \right]$

$A ^ { - 1 } = \left[ \begin{array} { r r r } - \frac { 1 } { 8 } & \frac { 1 } { 4 } & \frac { 1 } { 8 } \\\frac { 11 } { 8 } & \frac { 1 } { 4 } & - \frac { 3 } { 8 } \\- \frac { 3 } { 8 } - \frac { 1 } { 4 } & \frac { 3 } { 8 }\end{array} \right] , \text { solve } A X = \left[ \begin{array} { l } 9 \\2 \\6\end{array} \right] \text { for } X$

A) $X = \left[ \begin{array} { l } \frac { 1 } { 16 } \\\frac { 85 } { 16 } \\- \frac { 13 } { 16 }\end{array} \right]$
B) $X = \left[ \begin{array} { l } \frac { 1 } { 8 } \\\frac { 85 } { 8 } \\- \frac { 13 } { 8 }\end{array} \right]$
C) $X = \left[ \begin{array} { l } \frac { 1 } { 4 } \\\frac { 85 } { 4 } \\- \frac { 13 } { 4 }\end{array} \right]$
D) $X = \left[ \begin{array} { c } - \frac { 1 } { 8 } \\- \frac { 85 } { 8 } \\\frac { 13 } { 8 }\end{array} \right]$

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