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

The inequality is $\"\"$

Apply subtraction property of inequality: Subtract 18 from each side.

$\"\"$

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

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

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

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

Graph the Solution set on a number line

$\"number$

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

The solution set is $\"\"$ .