Nafta is a 1994 between the united states, mexico, and canada. a. free trade agreement b. quota c. tariff d. exchange rate

NAFTA is a 1994 free trade agreement between the United States, Mexico, and Canada.

NAFTA stands for The North American Free Trade Agreement which constitutes an agreement signed by Canada, Mexico, and the United States, forming a trilateral trade bloc in North America. The agreement came into force on January 1, 1994. The NAFTA trade bloc is one of the largest trade blocs in the world by gross domestic product.

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