SOLUTION: Trying find answer to the following type problems. I was absent and do not have examples. log[3] 3r-1=3 I found an online calculator that said the answer is 27 I just canno

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Trying find answer to the following type problems. I was absent and do not have examples. log[3] 3r-1=3 I found an online calculator that said the answer is 27 I just canno      Log On


   

Question 571218: Trying find answer to the following type problems. I was absent and do not have examples.
log[3] 3r-1=3
I found an online calculator that said the answer is 27 I just cannot get there.
Trey
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
log[3] 3r-1=3
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If you mean:
log%283%2C%283r-1%29%29+=+3
3r-1+=+3%5E3+=+27
3r = 28
r = 28/3