How did the northern strategy compare to the southern strategy in the battle of fort sumter?

The correct answer to this open question is the following.

The northerner strategy of the Union's Army was to attack Fort Sumter until they could recapture the fort. On the other hand, the strategy of the Confederated Army was to defend and resist by all means, the attacks of the Union. The Confederates occupied Fort Sumter for four years.

Fort Sumter was located on Charleston Harbor, South Carolina. It was the place were the American Civil War started.

1.3x - 2 - (3.3x + 5) = 2x + 1

1.3x - 2 - 3.3x - 5 = 2x + 1

-2x - 7 = 2x + 1

-7 = 4x + 1

-8 = 4x

x = -2

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.