During the colonial era, a major effect of the appalachian mountains on settlement was that the mountain range encouraged people to move north. kept people from settling farther east. encouraged expansion and settlement. kept people from settling farther west.

For many years, the Appalachian Mountains acted as a deterrent on westward settlement. The British Proclamation of 1763, created after the 7-Year War (French & Indian War) actually forbade colonists from settling beyond the mountains, largely considered to be a gesture of peace towards the tribes that lived west of the mountains.

Colonists did end up ignoring this proclamation and by the time of the Revolution, colonists were beginning to freely move past the range.

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Explanation:

i just took it

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13

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