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

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The original function is $\"\"$

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Write $\"\"$ as $\"\"$ or $\"\"$ $\"\"$

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First solve the case $\"\"$ .

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Apply Subtraction property of equality: if a = b, then a - c = b - c.

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$\"\"$ (Subtract 5 from each side)

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

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

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

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

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$\"\"$ (Cancel common terms)

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

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Next solve the case $\"\"$ .

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

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$\"\"$ (Subtract 5 from each side)

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

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

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

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$\"\"$

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\

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

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$\"\"$ (Cancel common terms)

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

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$\"\"$

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First, draw a number line.

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To graph the solutions set, mark the numbers $\"\"$ and $\"\"$ on number line.

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

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The solution set is $\"\"$ .