PLEASE DO NOT COPY PASTE FROM CHEGG/OTHERWISE I'LL REPORT YOU OR GIVE OU A DISLIKE

Express the column matrix $\mathbf{b}$ as a linear combination of the columns of of $A$.) $$ A=\left(\begin{array}{rrr} 1 & 1 & -6 1 & 0& -1 11 2 & -1 & -1 \end{array} ight), \quad \mathbf {b}=\left(\begin{array}{1} 3 l 111 0 \end{array} ight) $SCS.SD. 1891