0=4.67*10^8/(2+ln(x/150))-(2.5*30*1.4*10^8)/(2*1.5*15+(x-150)*2.5*(ln(x/150)))

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.