$\"\"$

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$\"\"$ $\"\"$

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The equation is $\"\"$ .

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Combine like terms using distributive property: ab + ac = a(b + c).

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$\"\"$

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

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$\"\"$

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Aplly multiplication property of equality: Multiply each side by 12.

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$\"\"$

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$\"\"$ (Cancel common terms)

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

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Aplly division property of equality: Divide each side by 7.

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$\"\"$

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$\"\"$ (Cancel common terms) $\"\"$

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Check:

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

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$\"\"$

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

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$\"\"$ (Cancel common terms)

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

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Compare the values, the equation is true. $\"\"$

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The solution is $\"\"$ .