BRAINLIEST IF CORRECT!! How did northern Africa´s location affect the development of its civilizations?

Early Settlement of Egypt and Kush In Egypt and Kush, most people farmed in the fertile Nile River valley. The Nile River provided fresh water in an area that was mostly desert. The topography of the Nile River valley made the land good for farming.

Explanation:

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it allowed them to control all trade in the region

Explanation:

Trade resources such as hold and salt and trade routes that helped different civilizations to interact and develop which means that they had a trading civilization

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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