Solving Double Inequalities

Inequalities :

Meaning of Inequalities Symbols
<   means Less than
≤   means Less than or equal to
>   means Greater than
≥   means Greater than or equal to

For (single) inequalities, treat the inequalities symbols as "=" sign.
The only difference is when you divide (or multiply) both sides by a negative number.

Example :

        -3x  <  15
        -3x / (-3)  >  15 / (-3)
          x  >  -5

Solving Double Inequalities :