Answer:
The debit adjustment to equipment would be $30,000.
Step-by-step explanation:
Amount received for the equipment by Mortar from Granite - $370,000
Purchase price of the equipment = $400,000
Debit adjustment to equipment = Purchase price of the equipment - Amount received for the equipment by Mortar from Granite = $400,000 - $370,000 = $30,000
Therefore, the debit adjustment to equipment would be $30,000.