humebrooklyn humebrooklyn 17-12-2021 Mathematics contestada The movement of the progress bar may be uneven because questions can be worth more or less (ir Add: (– 15xz + 4xy) + (20xy - 9yz + 16xz) O 24x2 y2 – 9yz + x² zº 0 16xyz 0 5xy – 5 yz + 16xz 024xy - 9yz + xz