Question: A linearly independent set S is given. Write some vector in S as a linear combination of the others

\[S=\left\{ \left[ \begin{matrix} 3 \\ 1 \\ 4 \\ 1 \\ \end{matrix} \right],\left[ \begin{matrix} 3 \\ 0 \\ 5 \\ 1 \\ \end{matrix} \right],\left[ \begin{matrix} 3 \\ 3 \\ 2 \\ 1 \\ \end{matrix} \right] \right\}\]