The inequality equation is .
Apply multiplication property of inequality: Multiply each side by 7.
\ (Cancel common terms)
(Multiply:
)
(Divide:
)
(Divided each side by 15)
(Cancel common terms)
(Divide:
)
(Multiply each side by negative one and flip the symbol)
(Product of two same signs is positive)
(Product of two different signs is negative)
Graph the solution set on a number line.
Note: A circle means that this point is not included in the solution set.
Check:
\To check, substitute a number less than in
.
(Substitute
)
(Multiply:
)
(Cancel common signs)
The inequality equation is true.
The inequality solution is .