Which Method Should Be Used to Solve the System? Explain

question 3

Essay

Which method should be used to solve the system? Explain your answer, including a description of the first step.
-x² + 9y² = 9
7x² + 8y² = 81

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Definitions:

Political Union

A type of state which is composed of or created out of smaller states, territories, or countries.

Cultural Identities

These are the shared beliefs, values, customs, and characteristics that define a group of people or a culture.

Ethnic Groups

Collections of people who share cultural practices, languages, historical backgrounds, and sometimes physical characteristics.

Multiethnic Societies

Societies comprised of multiple ethnic groups, often characterized by a rich diversity of cultures, languages, and traditions.