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Write the Word or Phrase That Best Completes Each Statement 5x26y2=167x7y=7\begin{array} { r } 5 x ^ { 2 } - 6 y ^ { 2 } = 16 \\- 7 x - 7 y = - 7\end{array}

question 498

Essay

Write the word or phrase that best completes each statement or answers the question.
Which method should be used to solve the system? Explain your answer, including a description of the first step.
5x26y2=167x7y=7\begin{array} { r } 5 x ^ { 2 } - 6 y ^ { 2 } = 16 \\- 7 x - 7 y = - 7\end{array}


Definitions:

Validity

The extent to which a concept, conclusion, or measurement is well-founded and corresponds accurately to the real world.

De Jure Corporation

A corporation that has been legally incorporated and recognized by the state, operating fully under the law.

Single Purpose

Designed or intended for one specific use or objective.

Limited Time

A restricted period designated for a specific purpose or event.

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