Question

Uthara has 6x - 7 pairs of shoes while China has 2x + 3 pairs of shoes. How many more pairs of shoes does Uthara have than China?
Bot
Uthara has 4x - 4 more pairs of shoes than China.
oobleck
AAAaannndd the bot gets it wrong yet again!

(6x-7) - (2x+3) = 4x-10