BigTreeWoody
Jun 3, 2009, 07:20 PM
Solve using logs
6=15^1-x
Perito
Jun 3, 2009, 07:31 PM
1. Isolate x as the only term on one side of the equation.
2. Take the logarithm of both sides of the equation.
3. Recognize that log(x^y) = y\,log(x)
The rest should be easy.