The united nations, the north atlantic treaty organization (nato), the organization for security and cooperation in europe, and the african union are all examples of

The United Nations, the North Atlantic Treaty Organization (NATO), the Organization for Security and Cooperation in Europe, and the African Union are all examples of international organizations.

Explanation:

An international organization is any organization normally formed by subjects of Public International Law and regulated by a set of its own rules, with members, scope, or international presence and common purposes. In everyday use, the term is generally reserved for intergovernmental organizations such as the United Nations, the Council of Europe, or the World Trade Organization, whose members are sovereign states or other international organizations.

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