Hi folks, I am working through a section on the classical limit of the relativistic doppler shift, but I am stuck on some algebra, I think it should be really basic but I just can't get it to work! My notes go from(adsbygoogle = window.adsbygoogle || []).push({});

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?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Stuck on simple algebra problem

**Physics Forums | Science Articles, Homework Help, Discussion**