Analyze the advantages of both the Union and the Confederate forces during the Civil War. Why was the North able to win the war?

The North or Union had more supplies, and land. The Union, also had a larger population, and they could draft/conscript regulars into the army. The south, on the other hand, had a limited army. The Union was also mainly industrialized, unlike the South, which was mainly agricultural.

The South had more experienced officers and generals, which meant they could fend off a Union invasion even if they were outnumbered. At the end, however, even if the South had better experienced officers and generals, they wouldn't have enough men to fight off the giant Union army.

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

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.