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Write the Word or Phrase That Best Completes Each Statement 9x2+8y2=36x6y=7\begin{array} { r } - 9 x ^ { 2 } + 8 y ^ { 2 } = 36 \\x - 6 y = - 7\end{array}

question 258

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.
9x2+8y2=36x6y=7\begin{array} { r } - 9 x ^ { 2 } + 8 y ^ { 2 } = 36 \\x - 6 y = - 7\end{array}


Definitions:

Proposition

A unit of meaning that is made up of concepts and expresses a single idea.

Mental Set

A cognitive framework or mindset that influences how a person approaches and solves problems, often based on past experiences and perceptions.

New Problems

Issues or challenges that have not been previously encountered or recognized.

Confirmation Bias

The tendency to interpret new evidence as confirmation of one's existing beliefs or theories.

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