( A^ -1 = left[ begin array rrr 0 & 1 & 1 -1 & 0 & 3 1 & 1 & 2 end array right], B= left[ begin array l 2 3 1 end array right], X= left[ begin array l x y z end array right] )

A^{-1}=\left[\begin{array}{rrr}0 & 1 & 1 \\ -1 & 0 & 3 \\ 1 & 1 & 2\end{array}\right], B=\left[\begin{array}{l}2 \\ 3 \\ 1\end{array}\right], X=\left[\begin{array}{l}x \\ y \\ z\end{array}\right]

BCC 25

A^{-1}=\left[\begin{array}{rrr}0 & 1 & 1 \\ -1 & 0 & 3 \\ 1 & 1 & 2\end{array}\right], B=\left[\begin{array}{l}2 \\ 3 \\ 1\end{array}\right], X=\left[\begin{array}{l}x \\ y \\ z\end{array}\right]

BCC 25