Answer:
The July 1st purchase increased assets (furniture) and liabilities (accounts payable).
The August 15th payment decreases assets (cash) and decreases liabilities (accounts payable is gone)
Step-by-step explanation:
The important thing about a balance sheet or the accounting equation is that they must balance. If the total numbers on both sides are not the same, then you did something wrong. If assets increase, liabilities or equity must increase also, and vice versa.