Inequalities

• Just like with equations, the solution to an inequality is a value that makes the inequality true. You can solve inequalities in the same way you can solve equations, by following these rules.

• You may add any positive or negative number to both sides of an inequality.
                                                                

• You may multiply or divide both sides of an inequality by any positive number.
                                                    

• Watchout! If you multiply or divide both sides of an inequality by a negative number, reverse the direction of the inequality sign!I

                                                       

• Compound Inequality

  • 0 < x < 4 is an example of compound inequality which says that x is either 0, or 4, or any number between 0 and 4.