Use inverse matrices to find the solution of the system of equations. 
Definitions:
Cement Truck
A vehicle equipped with a revolving drum used for mixing cement with water, sand, and gravel to make concrete and transporting it to construction sites.
Utility Function
A mathematical representation of how consumers rank different bundles of goods according to the level of satisfaction or utility those bundles provide.
Risk Averse
describes a preference for avoiding risk, where individuals opt for the option with the least uncertainty in outcomes or potential losses.
Subjective Measure
A type of data collection or evaluation based on personal opinions, interpretations, points of view, emotions, and judgment.
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