\"\"\"\"\"\"

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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 9 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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Next solve the case \"\" .

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\"\"               (Subtract 9 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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First, draw a number line.

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To graph the solutions set, mark the numbers –7 and  –9 on number line.

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\"\"\"\"

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The solution set is \"\".

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