Can someone please check my answer?

Question

Rearrange (cp-yd)/(pd)=p+y to make d the subject

OK, I did
cp-yd=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

Answer 1

correct! good job

Answer 2

thanks, wasn't sure whether i could simplify that last line or not