## Solve for x

2^x=7*5^x
I know you have to take ln of both sides but i am having trouble doing that for the right side.

 PhysOrg.com science news on PhysOrg.com >> 'Whodunnit' of Irish potato famine solved>> The mammoth's lament: Study shows how cosmic impact sparked devastating climate change>> Curiosity Mars rover drills second rock target
 Recognitions: Homework Help Science Advisor Remember the property of logarithms, ln(ab)=ln(a)+ln(b). That should help you deal with the right hand side.

Blog Entries: 9
Recognitions:
Homework Help
 Quote by chjopl 2^x=7*5^x I know you have to take ln of both sides but i am having trouble doing that for the right side.
I could give u the only hint possible,but that would be useless.So i'll better show u my version.Logarithmate both sides of the equation to find:
$$x\ln 2=\ln 7+x\ln 5 =>x=\frac{\ln 7}{\ln 2-\ln 5}$$.

Okay...??Clear???

PS:Shmoe,u were quicker than me...Again.

## Solve for x

Yeah thanks alot i was messing up and having ln7*xln5