Solve the equation. 
Definitions:
Material Conditions
The physical and economic factors that influence how individuals live, work, and interact within a society, according to Marxist theory.
Engels
Friedrich Engels, a 19th-century German philosopher, social scientist, and co-founder of Marxist theory alongside Karl Marx.
Family of Procreation
A family unit created by an individual, often through marriage and having children, distinguishing it from the family of origin.
Family of Orientation
Refers to the family into which a person is born and raised, including parents and siblings, influencing an individual's early socialization and values.
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