$\"subtraction$ $\"\"$

The inequality is $\"\"$ .

Apply addition property of inequality: Add 9.3 to each side.

$\"\"$

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

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

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

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

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

Check:-

To check, substitute greater than or equal to 21.8 in $\"\"$ .

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

$\"\"$ (Sustract: $\"\"$ )

The inequality is true. $\"\"$

The inequality solution is $\"\"$ .