$\"\"$

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The equation is $\"\"$ .

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Apply distributive property of equality: $\"\"$ .

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$\"\"$

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$\"\"$

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Apply addition property of equality: $\"\"$ then $\"\"$ .

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Add 8 to each side.

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$\"\"$

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$\"\"$

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$\"\"$ . $\"\"$

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Apply division property of equality: $\"\"$ then $\"\"$ .

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Divide each side by 7.

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$\"\"$

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Cancel common terms.

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$\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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This is true, therefore solution of the equation $\"\"$ is 3. $\"\"$

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The solution is 3.