Solve the system by the method of reduction Q 3x, -7%, -5x, = 29 x - 4x2 13 Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. x2 O A. The unique solution is X, x-and xy (Simplify your answers.) OB. The system has infinitely many solutions. The solutions are of the form xy = (Simplify your answers Type expressions using t as the variable) OC. The system has infinitely many solutions. The solutions are of the form X, (Simplify your answer. Type an expression using s and t as the variables.) OD. There is no solution and X3 =, where is any real number, XS, and X, where s and are any real numbers