SOLUTION: The Longs checking account was overdrawn by $35.87. On September 12, they deposited $580 in the account. While shopping on September 18, Mrs.Long wrote checks for $25 and $254.09.

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The overdrawn amount is recorded as a minus amount

Now add this to the deposit, which is a plus amount

The checks written are also recorded as minus
and
I add these minus amounts to the plus amount I have so far


The new account balence is $265