How do you solve log7 + log (n - 2) = log 6nlog7+log(n2)=log6n?

1 Answer
Apr 28, 2018

n= 14 n=14

Explanation:

We have:

log7 + log (n - 2) = log 6n log7+log(n2)=log6n

Using the log properties:

log ab = log a + logb logab=loga+logb
log a = log b iff a=b loga=logba=b

So that:

log 7(n - 2) = log 6n log7(n2)=log6n

:. 7(n - 2) = 6n

:. 7n-14 = 6n
:. 7n-6n = 14
:. n= 14