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

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

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$\"\"$ (Add 3 to each side)

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

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

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

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$\"\"$ $\"\"$ (Divide each side by 5)

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

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

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Next solve the case $\"\"$ .

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$\"\"$ (Add 3 to each side)

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

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

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

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$\"\"$ (Divide each side by 5)

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$\"\"$ (Cancel common terms)

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

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First, draw a number line.

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To graph the solutions set, mark the numbers 3 and - 1.8 on number line.

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

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The solution set is $\"\"$ .