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Use Cramer's Rule, if possible, to solve the system of linear equations.
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Government Securities
Financial instruments issued by the government to finance its expenditures, offering a return to the investors.
Banking System
The network of institutions that accept deposits, offer loans, and provide a variety of financial services to their customers, including savings and checking accounts.
Paper Money
Currency in the form of paper notes, issued by the government or central bank, representing a claim on the issuing country's government.
Gold
A precious metal that is used as an investment, a hedge against inflation, and in various industrial and jewelry applications, known for its value retention over time.
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