SOLUTION: Why does the inequality sign change when both sides are multiplied or divided by a negative number?
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Question 431528: Why does the inequality sign change when both sides are multiplied or divided by a negative number?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Suppose , and . From we obtain . We can subtract from both sides to get --> --> . Finally, we can scale both sides by the same positive number to get .
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