$\"\"$

The inequality is $\"\"$ .

Apply multiplication property of inequality: Multiply each side by 3.

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

$\"\"$ (Cancel common terms)

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

Check:

To check, substitute 21, a number less than 24 in $\"\"$ .

$\"\"$

$\"\"$ (Divide: $\"\"$ ) $\"\"$

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