I'm past this, but couldn't remember the rule....I have

Then there is a rule for solving this.... You can't multiply both sides by ,because you don't know if is negative or positive. The book says you should get

Thanks!

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- Jul 6th 2009, 01:36 PMChokfullInequalities with a variable in the denominator
I'm past this, but couldn't remember the rule....I have

Then there is a rule for solving this.... You can't multiply both sides by ,because you don't know if is negative or positive. The book says you should get

Thanks! - Jul 6th 2009, 02:52 PMcraig
With these types of equalities you have a couple of chouces.

As you said you cannot multiply both sides by , however you*can*multiply both by , as you know this is a positive number.

You can also make both sides into fractions and add or subtract to rearrange.

For example, , leading to

Can you solve this from here? - Jul 9th 2009, 12:57 PMChokfull