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

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The equation is $\"\"$

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Apply subtraction property of equality: Subtract 15 from each side.

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$\"\"$

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$\"\"$

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

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

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

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

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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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Graph the solution set on a number line $\"\"$

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Check:

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To check, substitute -3, a number and quals to -3, in $\"\"$ .

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

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

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

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The equlity is true

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$\"\"$

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The inequality solution is $\"\"$ .