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Which Method Should Be Used to Solve the System? Explain x23y2=497x27y2=9\begin{aligned}x ^ { 2 } - 3 y ^ { 2 } & = 49 \\7 x ^ { 2 } - 7 y ^ { 2 } & = 9\end{aligned}

Question 359

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Which method should be used to solve the system? Explain your answer, including a description of the first step.
- x23y2=497x27y2=9\begin{aligned}x ^ { 2 } - 3 y ^ { 2 } & = 49 \\7 x ^ { 2 } - 7 y ^ { 2 } & = 9\end{aligned}

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Either method may be used. Elimination m...

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