Answer:
They lost much of their land east of the Appalachians.
Step-by-step explanation:
The American Revolutionary War was a war of independence of the United States of America that was fought between the 19th of April, 1775 and 3rd of September, 1783. The war started when the delegates from the thirteen (13) American colonies in Congress (First continental congress) revolted against the Great Britain over their lack of representation in the colonies and refusal to give consent to parliament's taxation such as Stamp Act and Townshend Acts.
The Signing of the Treaty of Paris: the British Crown formally recognized the independent status of the United States of America. Thus, the Treaty of Paris officially ended the American Revolutionary War on the 3rd of January, 1783 and it was signed by a small group of statesmen which were Benjamin Franklin, John Jay, John Adams and a British named David Hartley on the 3rd of September, 1783 in Paris, France.
The Proclamation Line of 1763 is an important piece of the Treaty of Paris which created an invisible boundary west of the Appalachian Mountains. Thus, it prevented Native Americans from settling on any of the newly acquired land from the war.
Basically, the Proclamation Line of 1763 was decreed by the British (King George III) on the 7th of October, 1763 prohibiting all private citizens and Anglo-American colonists (European settlers) to settle in the land acquired from the French as a result of the Indian and French war.
Hence, Native Americans were affected by the American Revolution because they lost much of their land east of the Appalachians.