$\"\"$

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$\"\"$

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The equation is $\"\"$ .

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$\"\"$ (Distribute 2)

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

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$\"\"$ (Product of two same signs is positive)

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

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$\"\"$

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

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$\"\"$ (Commutative property of addition: $\"\"$ )

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$\"\"$ (Additive inverse property: $\"\"$ x $\"\"$ x = 0)

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$\"\"$ (Additive identity property: 0 $\"\"$ 5 = 5)

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

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$\"\"$ (Add 4 to each side)

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

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

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

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$\"\"$ (Divide each side by 2)

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$\"\"$ (Cancel common terms)

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

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Check:

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

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

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

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$\"\"$ (Simplify)

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$\"\"$

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The value of $\"\"$ .