The inequality is
.
Subtract 5 from each side.
\

Multiply each side by
.


The solution set is
.
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 three different values for v into the original inequality: negative 40, a number less than negative 40, and greater than negative 40.
\Let three values
are substitute in the original inequality,
. \ \
If
then
(This is true)
If
then
(This is true)
If
then
(This is false)
The solution set is
.