How did the Egyptians use the river?

Answer 1

Egyptians used the Nile like a highway to carry goods for trade

Ships could float downriver because the Nile flowed North

They could sail upriver because the wind blew towards south.

Egyptians also traveled across the desert to the Red Sea or to Mesopotamia
it brought silt [a mixture of pebbles and minerals that makes the dirt ideal for farming] , a drinking supply, and they could travel on it. The Nile being a slow moving river was ideal for transportation. An added bonus was the prevailing wind which blew in the opposite direction to the current allowing you to drift downriver on the current and sail up river against the current. Oars would give you additional speed in either direction.
irrigation for farming; fishing, wild fowling and hunting; a supply of washing and drinking water; and the transportation of goods and people. The Nile being a slow moving river ideal for transportation. An added bonus was the prevailing wind which blew in the opposite direction to the current allowing you to drift downriver on the current and sail up river against the current. Oars would give you additional speed in either direction.

fishing irrigation bathing transporting