Solve simultaneous equations using the inverse matrix
The following system is to be solved by using the coefficient inverse
The unknown column is ordered as \(e\) then \(f\)
\[\begin{bmatrix} 1 & 1 \\ 1 & 2 \end{bmatrix}\begin{bmatrix} e \\ f \end{bmatrix} = \begin{bmatrix} 8 \\ 14 \end{bmatrix}\]