$\"Multiplication$

$\"\"$

The inequality is $\"\"$

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

$\"\"$ \ \

$\"\"$ (Cancel common terms)

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

$\"\"$ (Multiply each side by negative one and flip the symbol)

$\"\"$ (Product of two same signs is positive)

Graph the solution set on a number line.

$\"$

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

Check:

To check, substitute a number greater than 30 in $\"\"$ .

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

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

The inequality is true. $\"\"$

The inequality solution is $\"\"$ .