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

The inequality is $\"\"$

$\"\"$ (Add 21 on each side)

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

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

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

$\"\"$ (Divide each side by 7)

$\"\"$ (Cancel common terms)

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

The solution set is $\"\"$

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 $\"\"$ .

The graph is $\"number$