Find the solution of the system of linear equations described by the following matrix: 
Definitions:
Adaptive Behaviour
The collection of conceptual, social, and practical skills that people have learned to be able to function in their everyday lives.
Fraternal Twins
Twins that develop from two different eggs fertilized by two different sperm, resulting in genetically distinct siblings born at the same time.
Identical Twins
Twins that develop from a single fertilized egg, splitting and forming two individuals with practically identical genetic material.
Schizophrenia
A psychological condition marked by disturbances in thinking, perception, emotions, and social behavior.
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