What was one of japans primary goals during world war 1?

Expansion

Explanation: Japans number one goal during world war 1 was expansion. Japan only joined the allies during world war 1 because it thought it would gain extra territory once the allies won. When this didn't happen, it began to attack and conquer Munchuria and China.

council members were chosen randomly, and men could present laws for debate in assembly.

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