PassageConsider the system AX=bAX=b, where A=[1111011−11]A=\begin{bmatrix}1&1&1\\1&0&1\\1&-1&1\end{bmatrix}, X=(x,y,z)TX=(x,y,z)^T, and b=(1,1,1)Tb=(1,1,1)^T. Let LL be the solution set and WW be the subspace corresponding to LL.