How do you solve log7 + log (n - 2) = log 6nlog7+log(n−2)=log6n?
1 Answer
Apr 28, 2018
n= 14 n=14
Explanation:
We have:
log7 + log (n - 2) = log 6n log7+log(n−2)=log6n
Using the log properties:
log ab = log a + logb logab=loga+logb
log a = log b iff a=b loga=logb⇔a=b
So that:
log 7(n - 2) = log 6n log7(n−2)=log6n
:. 7(n - 2) = 6n
:. 7n-14 = 6n
:. 7n-6n = 14
:. n= 14