Work Step by Step
If you call the amount of money in your bank account $x$, the total amount in your bank account after all 5 withdrawals is: $x-360$. To find the amount you withdraw every time, divide 360 by 5. You will get 72, which is our answer. If you withdraw 72 each month, that means your bank account goes down by 72 each month, hence the negative sign in the answer.