Solving Inequalities

Inequalities - you need to know

• The inequality signs. 

• The number sets (N, Z and R) and 
• how to graph them on the number line. (see this post)
• How to solve double inequalities (3^rd year only).
• How to solve practical problems based on inequalities.

Inequalities are like equations but with one important difference - if you multiple or divide both sides by a negative number the sign changes direction. To see this try the examples here. The solutions and some simple examples can be found here.

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