x+y

magnet said:
I need to rearrange to find x+y
p=(a*y/b*x)c+(d*f/b*x)

First, notice the very convenient denominators.

For b*x != 0, we have p*b*x=a*y*c + d*f -- Much simpler to write, but it doesn't actually get us anywhere toward the goal of an expression for 'x+y'.
 
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