Write the augmented matrix of the system and use the matrix method to solve the system. x + y + x-2y 2x+3y+5 2xy + Write the augmented matrix of the system. 1 1-20 260 2 3 5 740 2 -1 1 260 0 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. This system has exactly one solution. The solution is (40). (Type an exact answer in simplified form.) B. This system has infinitely many solutions of the form (z), where z is any real number. (Type expressions using z as the variable.) QC. This system has no solution.