Pre-Test Active
1
2
3
4
5
6
10
TIME REMAINING
53:19
In the years following World War II, the United States established a policy of containment to
O keep the countries of Eastern Europe from becoming communist.
O ensure that communism was contained to the Soviet Union only.
O eliminate all communist governments throughout the world.
O prevent the spread of communism outside of Eastern Europe.

eliminate all communist governments throughout the world

Explanation:

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

united kingdom

portugal

france

germany