hi how do I rearrange this equation to give me the value of J

G= pi x D^2/ 4JL

Thanks

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- Oct 10th 2008, 07:46 AMscarface1rearranging equation
hi how do I rearrange this equation to give me the value of J

G= pi x D^2/ 4JL

Thanks - Oct 10th 2008, 07:49 AMwatchmath
- Oct 10th 2008, 07:57 AMscarface1
i dont quite understand which two sides im supposed to multiply :S

could you possibly explain this step by step please

Thank you so much - Oct 10th 2008, 08:47 AMjpatrie
If i'm reading the question correctly, it's $\displaystyle G=\frac{\pi(D^2)}{4JL}$

So;

$\displaystyle \pi(D^2)=4GJL$

$\displaystyle \frac{\pi(D^2)}{4GL}=J$ - Oct 10th 2008, 08:48 AMjpatrie
You would cross multiply and solve for $\displaystyle J$