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The system of equations is $\"\"$ .

First find the value of x, and substitute $\"\"$ .

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Evaluate power: $\"\"$ .

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Subtract 9 from each side.

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The Power of $\"\"$ .

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Apply square roots on each side and evaluate powers.

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The solution of them system is $\"\"$ . $\"\"$

The solution of them system is $\"\"$ .