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

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The equation is $\"\"$ .

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According to subtraction property of inequality: Subtract 2f from each side.

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$\"\"$

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ )

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$\"\"$ (subtract: $\"\"$ ) $\"\"$

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Graph the solution set on a number line.

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$\"\"$

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Note: A circle means that this point is not included in the solution set. $\"\"$

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check:

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To check,a number less than $\"\"$ in $\"\"$ .

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Product of two different signs is negative)

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

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

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The inequlity is true. \ \ $\"\"$

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The inequlity solution is $\"\"$ .