Solve a matrix equation
Let \(Z\) be the unknown 2 × 2 matrix
Rows are ordered as Zone 1 then Zone 2, and columns as Park 1 then Park 2. All entries are exact
\[Z + G = H\]
\[G = \begin{bmatrix} 5 & 6 \\ 1 & 5 \end{bmatrix}\]
\[H = \begin{bmatrix} 13 & 13 \\ 9 & 11 \end{bmatrix}\]