Math Challenges

Problem #7

Is the vector b a linear combination of the column vectors of matrix A?

\[ A=\begin{pmatrix}1 & -4 & 6\\ 0 & 4 & 8\\ -1 & 2 & -10\end{pmatrix}\mathbf{b}=\begin{pmatrix}3\\ -1\\ -3\end{pmatrix} \]