$\"\"$

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The equation is $\"\"$ .

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According to addition property of equality: if a = b, then a + c = b + c.

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$\"\"$ (Add 8 to both sides)

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$\"\"$ (Additive inverse property: $\"\"$ )

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

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$\"\"$ \ \

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According to multiplication property of equality:

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For any number a, b and c, If a = b then ac = bc.

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

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$\"\"$ (Cancel common terms)

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

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$\"\"$

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

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

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11 = 11 (Subtract: $\"\"$ )

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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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