sir i dont understand this line ......

however when both inequalities are multiplied opr divided by a negative number then the sign of the inequality is reserved .. ????

Here is the answer to your question.
When both sides of the inequality are multiplied or divided by a negative number, then the sign of the inequality is reversed.
Let us consider some examples to understand the concept.

  • 1

 It is not reserved but  " REVERSED"....

  • 2 means that if both inequalities are multiplied or didvided by a negative number say -5x=15 then the solution will be:

-5x/-5 <15/-5 now in the next step the special character '<' will get reverse to '>':


now the solution will be: x>-3

  • 5

 Hope..this will help u...

  • 1
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