Question

Box A contained 256 marbles. Box B contained 84 marbles. Peter added an equal number of marbles to each box. Box A then contained twice as many marbles as Box B. How many marbles did Peter add to each box?

Answer 1

Peter added 84 marbles to each box.

Answer 2

AAAaannndd the bot gets it wrong yet again!

256+x = 2(84+x)
x=88