The direction for number 7b says, "Find the vector form of the general solution of the linear system Ax=b, and then use that result to find the vector form of the general solution of Ax=0". (b) x1 +...

The direction for number 7b says, "Find the vector form of the general solution of the linear system Ax=b, and then use that result to find the vector form of the general solution of Ax=0".