$\"\"$

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The equation is $\"\"$ .

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Solve the eqation:

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$\"\"$ (Original equation)

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$\"\"$ (Cross product)

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$\"\"$ (Multiply)

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$\"\"$ (Subtract $\"\"$ from each side)

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$\"\"$ (Apply additive inverse property : $\"\"$ )

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

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$\"\"$ (Cancel common terms)

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Therefore,the value of $\"\"$ is $\"\"$ .

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$\"\"$

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Check the solution by substituting $\"\"$ -value in the equation.

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$\"\"$ (Original equation)

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$\"\"$ (Substitute $\"\"$ in the equation)

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$\"\"$ (Multiply)

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$\"\"$ (Add)

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$\"\"$ (Simplify)

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Therefore,the equation is satified at $\"\"$ .

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So, the value of $\"\"$ is $\"\"$ .

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$\"\"$

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The value of $\"\"$ is $\"\"$ .