qlexxii qlexxii 01-02-2021 Mathematics contestada Solve this system 5x – 4y + 2z = 21 -x - 5y + 6z=-24 --x – 4y + 5z =-21 O x = 5, y = -1, z = -4 0 x = 1, y = 5, z = -4 O x=-5, y = 1, z = -4 O x = -4, y = -1, z = 5