Rearranging formula  TOPIC_SOLVED

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Rearranging formula

Postby R515 on Thu Jan 16, 2014 7:22 pm

Me and my daughter are stuck rearranging this formula,her notes from class aren't that clear and it's 35yr since I was at school, please help,

X=p-q
pq

i.e. p-q divded by pq = x

where q needs to be the subject

We've taken it as far as xpq =p-q but are now struggling.

Many thanks Mark
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Re: Rearranging formula  TOPIC_SOLVED

Postby FWT on Fri Jan 17, 2014 2:34 am

R515 wrote: X=p-q
pq

i.e. p-q divded by pq = x

They show how to type math here. Yours would look like "x = (p - q)/(pq)". (I'm assuming that "X" and "x" are supposed to be the same thing??)

R515 wrote:q needs to be the subject

We've taken it as far as xpq =p-q but are now struggling.

They show the trick for this here. Yours would like like:

xpq = p - q
xpq + q = p
(xp + 1)q = p

Finish.
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Re: Rearranging formula

Postby R515 on Fri Jan 17, 2014 3:46 pm

Many thanks for the reply,

Mark
R515
 
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Joined: Sun Oct 20, 2013 9:29 am


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