Final answer:
Arlington LLC's gain recognized on the exchange is $7,000.
Step-by-step explanation:
To determine Arlington LLC's gain or loss recognized on the exchange, we need to compare the fair market value of the new land received with the original cost of the land exchanged. The fair market value of the new land is $35,000, while the original cost of the land exchanged is $28,000. Therefore, the gain recognized on the exchange is the difference between the fair market value and the original cost, which is $35,000 - $28,000 = $7,000.
In addition to the land, Arlington LLC also received $2,000 of office equipment in the transaction. However, this equipment does not factor into the calculation of gain or loss on the exchange, as it is considered a non-monetary asset.
Therefore, Arlington LLC's gain recognized on the exchange is $7,000.