MathML Christmas

For users with browsers that support MathML :

$y = \frac{\ln (\frac{x}{m} - s a)}{r^{2}}$

$y r^{2} = \ln (\frac{x}{m} - s a)$

$e^{y r^{2}} = \frac{x}{m} - s a$

$e^{y r^{2}} + s a = \frac{x}{m}$

$m (e^{y r^{2}} + s a) = x$

$m e^{y r^{2}} + m s a = x$

$m e^{y r^{2}} = x - m s a$

$m e^{r r y} = x - m a s$

Sorry Chrome users, Google Scrooge says you can't have MathML .

Note: I found this on Facebook being passed around as an image so I converted it to MathML. I'd love to give credit to whomever came up with it.