Find the Inverse [[-1,-1],[1,4]][[x],[y]]=[[-4],[1]]

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

The matrix must be a square matrix to find the inverse.

Inverse matrix cannot be found