SOLUTION: Solve the equation: 3^x-2=7^x
Algebra
->
Logarithm Solvers, Trainers and Word Problems
-> SOLUTION: Solve the equation: 3^x-2=7^x
Log On
Algebra: Logarithm
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on logarithm
Question 759927
:
Solve the equation: 3^x-2=7^x
Answer by
stanbon(75887)
(
Show Source
):
You can
put this solution on YOUR website!
Solve the equation: 3^x-2=7^x
----
Take the log of both sides:
(x-2)*log(3) = x*log(7)
----
x[log3-log7] = 2log(3)
----
x = log(9)/[log(3/7]
---
x = -2.5932
==============
Cheers,
Stan H.
==============