algebra
posted by Sab .
Can someone please check my answer?
Rearrange (cpyd)/(pd)=p+y to make d the subject
OK, I did
cpyd=pd(p+y)
cp=pd(p+y)+yd
cp=p^d+pdy+yd
factoring out the d
cp=d(p^2+py+y)
cp/(p^2+py+y)=d
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