How far north did the shang dynasty reach

Around 600 miles

Explanation:

The Shang dynasty almost lasted 600 years there was a total of 30 emperors. this was the first family of the rulers who left the written history behind, Anyang was one of the capitals of Shang dynasty that was the oldest and one of the important Shang cities.

Higher classes in the Shang dynasty lived in the wood houses with walls of clay while peasants lived in the hovels outside the city, the dynasty was divided between nobles and the peasants.

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.

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