$\"\"$

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Original equation.

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$\"\"$

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$\"\"$

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$\"\"$ (Equate the corresponding elements)

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Equation 1: $\"\"$ and Equation 2: $\"\"$ . $\"\"$

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Solve the equation 1: $\"\"$ .

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Apply division property of equality: If a = b then $\"\"$ .

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$\"\"$ (Divide each side by 2)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Divide: $\"\"$ ) $\"\"$

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Solve the equation 2: $\"\"$ .

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$\"\"$ (Divide each side by 3)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Divide: $\"\"$ ) $\"\"$

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The value of the expression $\"\"$ .

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

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

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

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Option B is the right answer.