finding value of x

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Article #153

#153

From: Rod
Date: Sat, 31 Mar 2007 09:29

14 lines
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My name is cody
12yo in year 7 primary school.

can someone explain the story
to end up with the correct answer
to this one
http://cjoint.com/data/dFlxPGB5yb.htm

I do not know how the negative arrives
in the centre of the fraction in the answer.

Is this the best place to place my queries?
thank you
cody

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From: "Rod" <pookiethai@iprimus.com.au>
Newsgroups: aus.mathematics
Subject: finding value of x
Date: Sat, 31 Mar 2007 17:29:13 +0800
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