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\(\begin{bmatrix}
a - b &&& 2a + c\\
2a - b &&& 3c + d
\end{bmatrix} = \begin{bmatrix}
5 && -19\\
0 && -29
\end{bmatrix}\)
a - b &&& 2a + c\\
2a - b &&& 3c + d
\end{bmatrix} = \begin{bmatrix}
5 && -19\\
0 && -29
\end{bmatrix}\)
\(a\) \(=\)
\(b\) \(=\)
\(c\) \(=\)
\(d\) \(=\)
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