Seth currently has $160 in his account and he deposit eight dollars in it every week. Keira has $270 in her bank account and withdraws three dollars from it every week. Write a equation to determine the number of weeks it would take seth and Keira to have the same amount of money in their accounts. Explain.

Seith = 160 + 8w , where w is the number of weeks

Keira = 270 - 3w

so we want
160 + 8w = 270 - 3w

solve for w,
Your solution becomes the explanation