Katherine has $140 in the bank and is saving $6 per week. Abbie has $462 in the bank, but is spending at a rate of $10 per week. Which equation will determine when they will have the same amount of money in the bank?
A) 140 + 6x = 462 + 10x


B) 140 + 6x = 462 - 10x


C) 140 + 10x = 462 - 6x


D) 140 - 6x = 462 + 10x