system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do they balance weight on planes with an odd number of seats in each row?

For example, how do they balance weight on planes with rows of 3? Seems like one side would be much heavier.
gpt
It is not that much heavier as the isle would be close to the center of the aircraft. And they can balance the aircraft using the location of the cargo and by pumping fuel between the wing tanks. And lastly they just put a bit of trim on their flight controls so that one wing produce a bit more lift then the other wing.