July 1 - Started business with #10,500
July 31- Paid Agromachinex #6,000 owing
them

The double entry for July 1 would be

A.

Debit capital and credit cash

B.

Credit cash and debit bank

C.

Debit cash and credit capital

D.

Debit purchases and credit cash

Correct answer is D

Starting a business with 10500 means the business owner must have bought good for resale with that amount of money. Therefore we will debit purchase/stock account and credit cash account

Note; capital (cash in this case) is the money used in started a business
Purchases in accounting are goods bought for resale.