Why would southern delegates to the Constitutional Convention have opposed the Three-Fifths Compromise? They opposed the creation of a Congress that would give all states the same number of Senators

They wanted their full population of slaves to be counted for purposes of Congressional representation.

They feared that the creation of the office of President would produce a "king" in the United States

They believed that more states with a larger population should have more representation in Congress

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation:

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

c) he felt the constitution clearly gave states this right.