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

The equation is $\"\"$ .

Apply subtraction property of inequality: subtract 20 from eachside.

$\"\"$

$\"\"$ (Subtact: $\"\"$ )

$\"\"$ (Comutative property: $\"\"$ )

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

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