Find the value of k for which the equations kx-2y+z=1, x-2ky+z=-2, x-2y+kz=1 have (1) no solution (2) unique solution (3) infinetly many solution

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.