Nazis invaded the soviet union in 1941
(5a - 2a) +3
Collect terms: 5a -2a = 3a
3a +3 is the answer because 3a can’t be added to 3 as it’s on its own.
Confucianism is a system of philosophical and ethical teachings founded by Confucius and developed by Mencius.
Cultural diffusion is when groups are divided over time due to differences of opinions over time. One example for today would be the presidential election which divides many cultural groups because of the issues which each individual in the group supports.