Suppose the set S is the set of solutions of an inhomogeneou
     Suppose the set S is the set of solutions of an inhomogeneous system of 3 equations in 4 variable, x_1, x_2, x_3 and x_4. Write down the reduced row echelon form of the augmented coefficient matrix of the system of equations!  S = {(1 + a  a + b  b  a) = (1  0  0  0) + a (1  1  0  1) + b (0  1  1  0) | a, b  R} 
  
  Solution
From a system of equations we get the solution through augmented matrix but not reverse.we are unable to form the augmented matrix corresponding to the system from the given set of solution.

