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

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The inequality is $\"\"$ .

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Apply substation property of inequality: Substrate 9r from each side.

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$\"\"$

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$\"\"$ (Commutative property of addition: a + b = b + a) $\"\"$ (Additive inverse property: $\"\"$ )

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

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$ $\"\"$ (Subtract 24 from each side)

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$\"\"$ (Commutative property: a + b = b + a)

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

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

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

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Note: A dot means that this point is included in the solution set. $\"\"$

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Check:

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To check,a greater than or equal to $\"\"$ ,in $\"\"$ .

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$\"\"$ (Substitute: r = - 9)

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

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

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$\"\"$ (Subtrat: $\"\"$ )

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The inequality is true. $\"\"$

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The inequality solution set is $\"\"$ .