Solve for x and X2. 1 2 X1 20 H38P 1 1 X2 Select the correct choice and, if necessary, fill in the answer boxes to complete your choice. A. x = x2= (Simplify your answers.) OB. There are infinitely many solutions. OC. There is no solution. Write the given system of equations as a matrix equation and solve by using inverses. -x1 + x2 = K -x1 + 2x2 = K2 a. What are X1 and X2 when k = 3 and k = 6? x = = ....