- #1

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w = w'(1 - B)

to

(w' - w)/w = B

The context doesn't matter here really, I am just trying to work out the algebraic steps to go from

y = x(1 - B)

to

( x - y) / y = B

I have spent over an hour going around in circles and it seems impossible, have I copied something down wrong or can it be done?