Question
Solve log4(x-6)= -1
Answers
Harper
Where do you start?
Anonymous
Your first step would be to remove the log.
If log(x) = y
Then x = 10^y
(I'm assuming the log in the question is base 10)
If log(x) = y
Then x = 10^y
(I'm assuming the log in the question is base 10)
Reiny
I will assume you mean:
log<sub>4</sub>(x-6)= -1
then ..
x-6 = 4^-1
x-6 = 1/4
4x-24 = 1
4x = 25
x = 25/4
log<sub>4</sub>(x-6)= -1
then ..
x-6 = 4^-1
x-6 = 1/4
4x-24 = 1
4x = 25
x = 25/4