What is not true about early civilization A group of people was considered a civilization once they could make nature work to their advantage

Division of labor and surplus of food were developed before irrigation

Natural disasters and large scale diseases altered the growth of civilization

Only some of the earliest civilization started in river valleys

Geography could be a challenge or benefit to the people that settles an area

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

chemicals that are toxic to plants

a big main expressed powr of the congress is to

borrow money

congress borrows money all the time this is a rpime factor to pay for things that the americans need for example they give money ot the banks they give money to the milltary they borrow money so they can give it back to the people who need it such as the buisnessses and the army