The inequality is .
Apply multiplication property of inequality: Multiply each side by 4.
\ (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
\Check:
\To check, substitute 9.6, a number greater than
9.6 in
.
(Divide:
)
(Product of two same signs is positive)
The inequality solution set is .