kx + y = 0 80. No solution x + ky = 2 kx + y = 4 81. No solution x+2y+kz = 6 3x+6y+8z = 4 82. Exactly one solution kx+2ky + 3kz = 4k x+ y + z = 0 2x- y + z = 1 83. Determine the values of k such that the system equations does not have a unique solution. x+y+kz=3 DELE