Give 4 reasons why countries go to war in complete sentences:

Explanation:

1. Economic Gain

Often wars are caused by one country's wish to take control of another country's wealth

2 Territorial Gain

A country might decide that it needs more land, either for living space, agricultural use, or other purposes.

3.Religion

Religious wars can often be tied to other reasons for conflict, such as nationalism or revenge for a perceived historical slight in the past.

4.Nationalism

Nationalism in this context essentially means attempting to prove that your country is superior to another by violent subjugation.

i think its provide for the common defense

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