$\"\"$

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The equation is $\"\"$ .

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Check whether $\"\"$ is a solution of the equation.

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Substitute $\"\"$ in the equation.

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$\"\"$ (Write the equation)

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

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$ is a solution. $\"\"$

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$\"\"$ is a solution.