The inequality is
.
Apply distributive property:
and group like terms.


Apply addition property of inequality: If
then
.
Add 6 to each side.
\

Apply subtraction property of inequality: If
then
.
Subtract 15j from each side.
\

.
Apply division property of inequality: If
then
.
Divide each side by 0.5.
\
Cancel common terms.
\
.
The solution of inequality is
.