To find Juan's balance at the beginning of September, you can use the following equation:
Beginning Balance + Deposits - Withdrawals and Payments - Maintenance Fee = Ending Balance
Let B represent the beginning balance:
B + $1,970 - $510 - $15 = $3,275
Now, let's solve for B:
B + $1,970 - $510 - $15 = $3,275
B + $1,445 = $3,275
Subtract $1,445 from both sides to find the beginning balance:
B = $3,275 - $1,445
B = $1,830
Juan's balance at the beginning of September was $1,830.