What contributed to the successful growth of the Virginia colony?

Tobacco farming

Explanation:

Tobacco farming allowed for Virginia to become successful.

It increased trade, profits, migration, and the need for labor.

Many began to migrate to Virginia for economic opportunities with tobacco cultivation, which helped to stimulate the economy even more.

Tobacco became the most important cash crop in Virginia, and millions of pounds were sold every year.

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