Let n is an unknown number.
\The word
eight less than a number n
represents
.
The word
is no more than
represents
.
The word
is no less than
represents
.
The word
Eight less than a number n is no more than 14
represents
.
The word
Eight less than a number n is no less than 5
represents
.
The word
Eight less than a number n is no more than 14 and no less than 5
represents
.
The inequality is
.
The inequality
divide into two inequalities by using and.
.
Solve the inequality 1:
.
Add 8 to each side.
\
.
Solve the inequality 2:
.
Add 8 to each side.
\
.
The solution set is
.
The value of n is between 13 and 22 and including 13 and 22.
Check: To check, substitute three different values for n into the original inequality: any number within 13 and 22, a number less than 13, and greater than 22.
\Let three values are
.
If
then
(This is false)
If
then
(This is true)
If
then
(This is false).
The solution set is
.