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algebra help

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algebra help [#permalink] New post 12 Jan 2013, 17:38
can someone explain how pq = (0.5p)(1 + x)q can be rewritten as pq = (0.5)(1 + x)pq? I know this is relatively simple but cant envision it after long day of studying. Thanks!
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Re: algebra help [#permalink] New post 12 Jan 2013, 21:57
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jmuduke08 wrote:
can someone explain how pq = (0.5p)(1 + x)q can be rewritten as pq = (0.5)(1 + x)pq? I know this is relatively simple but cant envision it after long day of studying. Thanks!

You see, a*b*c= a*c*b = b*a*c etc

similary, pq= (0.5p)(1+x)q
is equivalent to: pq= 0.5*p * (1+x)*q
or
pq= 0.5*(1+x)*p*q
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Re: algebra help   [#permalink] 12 Jan 2013, 21:57
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