The inequality is .
(Distributive property:
)
(Multiply:
)
Apply addition property of inequality: Add 9 to each side.
\
(Additive inverse property:
)
(Additive identity property:
)
(Subtract 6n from each side)
(Commutative property:a+b=b+a)
(Subtract:
)
(Additive inverse property:
)
(Additive identity property:
)
(Divide each side by 27)
(Divide:
)
(Cancel common terms)
(Multiply each side by negative sign)
(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)
The solution set is .