Which Statement is True?

A. The United States did NOT affect the outcome of World War 1
B. U. S. entry into the war angered the French.
C. U. S. entry into the war caused it to end more quickly.
D. The United States contributed troops to the war, but not much equipment.

U.S entry into the war caused it to end quickly.

Explanation:

100% accurate

not to sure thinking it would be a hope this

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