The following augmented matrix is in row-echelon form and represents a linear system. Solve the system by using back-substitution if possible.A. The solution set is?B. There are infinitely many solutions. The solution set is x,__?C. There is no solution

The following augmented matrix is in rowechelon form and represents a linear system Solve the system by using backsubstitution if possibleA The solution set isB class=