$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Write original equation)

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$\"\"$ (Substitute: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Add: $\"\"$ ) $\"\"$

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$\"\"$ (Substitute: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Add: $\"\"$ )

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$\"\"$ is not a solution of $\"\"$ . $\"\"$

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The answer is B. \ \