x·[2, -1, 3] + y·[3, 0, 2] + z·[1, a, 14] = [-10, 2, -10] --> x = -2 ∧ y = -2 ∧ z = 0 damit gilt das für alle a
x·[2, -1, 3] + y·[3, 0, 2] + z·[1, a, 14] = [5, 5, 5] --> x = 1 - 48/(a + 8) ∧ y = 30/(a + 8) + 1 ∧ z = 6/(a + 8) damit gilt das für a ≠ -8