Hi there im having problems trying to make p the subject, because p is on the top and bottom of the RHS; Z=(pq)/p-q any ideas, also, what kind of problem is this?
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Originally Posted by madmax29 Hi there im having problems trying to make p the subject, because p is on the top and bottom of the RHS; Z=(pq)/p-q any ideas, also, what kind of problem is this? solving a literal equation for a variable ... $\displaystyle \displaystyle z = \frac{pq}{p-q}$ $\displaystyle z(p-q) = pq$ $\displaystyle zp-zq=pq$ $\displaystyle zp-pq=zq$ $\displaystyle p(z-q)=zq$ $\displaystyle \displaystyle p=\frac{zq}{z-q}$
thanks, i was pretty close and got down to the third line, however i messed up my transpostion after that, now its ok, i see now they swap to make 'zq' the subject..kk "simples" after that!
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