
The inequality is
.
Apply division property of inequality: Divide each side by 2.
\
\ \
(Divide:
)
(Cancel common terms) \ \
(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.
The solution set is
.