C. Example on Vector Parametric Solutions 1- Assume some system of equations is written in matrix form and is reduced to RREF. The result is that the reduced augmented matrix is: 1 2 0 2 0 2 0 0 1 1 0 3 0 0 0 1 0 1 There are 3 pivots, and they correspond to the variables: x1, x3, x5 - these are the basic variables. The free variables are x2 and x4. Write the solution in parametric form: x = p + (31121 + C2172