SOLUTION: What is the first step in solving this logarithmic equation: log 3 + log (x + 1) = log (2x + 4) PLEASE HELP

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: What is the first step in solving this logarithmic equation: log 3 + log (x + 1) = log (2x + 4) PLEASE HELP      Log On


   

Question 816800: What is the first step in solving this logarithmic equation: log 3 + log (x + 1) = log (2x + 4)
PLEASE HELP
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

log 3 + log (x + 1) = log (2x + 4)  |  1st step would be to get them on one side of the EQ  

log 3 + log (x + 1)- log (2x + 4) = 0  | write as one Logarithm

log%2810%2C%283%28x%2B1%29%2F%282x%2B4%29%29%29+=+0+ Apply: and 

     %283%28x%2B1%29%2F%282x%2B4%29%29+=+10%5E0        Apply: 

 %283%28x%2B1%29%2F%282x%2B4%29%29+=+1

    3x+ 3 = 2x + 4

       x = 1  

CHECKING our answer***

log 3 + log (x + 1) = log (2x + 4) 

log 3 + log (2) = log (6)