Step-by-step explanation:
Inequalities are solved just like regular equations. The difference is that you need to take care to reverse the direction when multiplying or dividing negative numbers.
The simplest way to solve an inequality is to first solve it as an equality, and then CHECK the value to find out which way the sign should point.
x
3
<
6
; multiply both sides by 3;
x
<
18
As an equality:
x
3
=
6
;
x
=
18
CHECK one value higher (19): ;
19
3
<
6
;
6.333
<
6
NOT TRUE! So, the value of x must be LESS than 18, as found originally.
x
<
18