Which Method Should Be Used to Solve the System? Explain

question 79

Essay

Which method should be used to solve the system? Explain your answer, including a description of the first step.
-x² + y² = 1
-10x - y = -1

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Definitions:

Real Exchange Rate

A measure that adjusts the nominal exchange rate by the relative prices of domestic and foreign goods and services, reflecting the purchasing power of two currencies.

Net Exports

The value of a country's total exports minus its total imports, indicating whether a country is a net exporter or importer.

Bankruptcy

A legal status for individuals or entities that cannot repay the debts they owe to creditors, leading to legal proceedings that divide the debtor's assets among creditors.

Banks

Financial institutions licensed to receive deposits and provide loans to individuals and businesses.