Answer:
($500) = NA + NA + ($500)
Explanation:
In this question, the following accounting equation is used
Assets = Liability + common stock + retained earnings
As in the transaction, it is given that $500 cash is paid for advertising expense, so this event would be affecting the accounting equation for asset and the retained earning account i.e
($500) = NA + NA + ($500)
As cash is paid which reduces the asset balance plus the retained earning balance is also get reduced by $500