The treaty of Versailles was?
A. the treaty with Germany
B. the cease fire at the end of the war
C. the treaty with Austria-Hungary
D. the treaty with the Central Powers

B. the cease fire at the end of the war

Explanation:

"The Treaty of Versailles was the most important of the peace treaties that brought World War I to an end. The Treaty ended the state of war between Germany and the Allied Powers." On top of that, the Treaty was intended to punish Germany.

i see, would you mind putting it as one?

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