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$\"\"$

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The equation is $\"\"$

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$\"\"$ (Multiply each side by 5)

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$\"\"$ (Cancel common terms)

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

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$\"\"$ (Add n to each side)

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$\"\"$ (Additive inverse property: $\"\"$ n + n = 0) $\"\"$

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

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$\"\"$ (Cancel common terms)

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$\"\"$

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Verify:

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To check the solution, substitute $\"\"$ in original equation.

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$\"\"$

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$\"\"$ (Cancel common terms)

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$\"\"$ (Additive inverse property: $\"\"$ n + n = 0)

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

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Compare the values, the equation is true.

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$\"\"$

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The value of $\"\"$ .

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