SOLUTION: Why does the inequality sign change or flip after dividing by a negative number

Algebra ->  Inequalities -> SOLUTION: Why does the inequality sign change or flip after dividing by a negative number      Log On


   

Question 965316: Why does the inequality sign change or flip after dividing by a negative number
Found 2 solutions by Fombitz, josgarithmetic:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Because that's the rule when you multiply or divide an inequality by a negative number.

Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Try testing this yourself!

You should already know x%2A%28-1%29=-x.
Something like (-6)(-1)=6, a way to operate on a number to get its opposite.

LOOK! 7%3C10.
(-1)(7) versuse (-1)(10)
-7 versus -10
-7%3E-10.