Finite Math Examples

${[\begin{array}{c} - 12 & - 4 & - 1 \\ - 10 & - 3 & 0 \\ 13 & - 3 & - 9 \end{array}]}^{- 1} [\begin{array}{c} 23 \\ 17 \\ 32 \end{array}]$

Step 1

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${[\begin{array}{c} - 12 & - 4 & - 1 \\ - 10 & - 3 & 0 \\ 13 & - 3 & - 9 \end{array}]}^{- 1} [\begin{array}{c} 23 \\ 17 \\ 32 \end{array}]$