
The inequality equation is
.
Apply multiplication property of inequality: Multiply each side by 9.
\
(Cancel Common terms)
(Multiply:
)
(Divide:
)
(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 dot means that this point is included in the solution set.
Check:
\To check, substitute a number greater than or equal to 3 in
.
(Substitute
)
(Divide:
)
The inequality solution is
.