How do you solve ln(-4x-3) = ln12?

1 Answer
A08
Mar 25, 2016

x=-3 3/4

Explanation:

Solve ln (-4x-3)=ln12

We observe that on both sides we have ln of the numbers.
Therefore take "Anti" ln of both sides
cancel("Anti" ln)"of"cancel (ln) (-4x-3)=cancel("Anti" ln) "of" cancel(ln)12
=>(-4x-3)=12
or -4x=12+3, solving for x
x=-15/4=-3 3/4

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