有限数学例

$[\begin{array}{c} 1 & 2 \\ 3 & 4 \end{array}] = [\begin{array}{c} x \\ y \end{array}] [\begin{array}{c} - 1 \\ 4 \end{array}]$

ステップ 1

$[\begin{array}{c} 1 & 2 \\ 3 & 4 \end{array}] = [\begin{array}{c} x \\ y \end{array}] [\begin{array}{c} - 1 \\ 4 \end{array}]$

有限数学 例