When fighting began in the korean war in 1950, what major advantage did north korea possess?
north korea had a huge number of troops.
north korea had the support of the united nations.
north korea was led by douglas macarthur.
north korea was led by syngman rhee.

The correct answer is "North Korea had a huge number of troops.

Explanation:

The Korean War, between 1950 and 1953, was a conflict between South Korea, supported by the USA and the United Nations and North Korea, helped by the USSR and China. Syngman Rhee presided over South Korea. The main advantage of North Korea was the greater number of soldiers (almost 1,000,000 more than South Korea), mostly Chinese.

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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