Similarities between the homes of the Cherokee and the homes of the Iroquois are best explained by I am being timed so please answer quickly

the groups’ historical connections to Mound Builders.

the arrival of European explorers and settlers.

their shared language and culture.

their shared geography and climate.

Explanation:

It's been asked before, here's the source:

russia because it is the biggest state

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27