Let n is an unknown number.
\The word negative three times a number n plus 4
represents
.
The word is less than
represents
.
The word five times the number n plus 8
represents
.
The word Negative three times a number n plus 4 is less than five times the number n plus 8
represents
.
The inequality is .
Apply addition property of inequality: If .
Add 5n to each side.
\Apply subtraction property of inequality: If .
Subtract 8 from each side.
\Apply division property of inequality: If .
Divide each side by 8.
\The solution set is .
Check:
\To check, substitute three different values for n into the original inequality: , a number less than
, and greater than
.
Let three values are .
If then
(This is false)
If then
(This is false)
If then
(This is true).
The inequality is and the solution set is
.