SOLUTION: I was wondering how would you solve a problem like this: log(2x+3) = 6

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: I was wondering how would you solve a problem like this: log(2x+3) = 6      Log On


   

Question 224112: I was wondering how would you solve a problem like this: log(2x+3) = 6
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming that "log" means "log base 10", you have

log%2810%2C2x%2B3%29=+6

This means that 10%5E6=+2x%2B3
1000000=+2x+%2B+3
999999=2x

x=+999999%2F2=499999.5

For an additional explanation of Logarithms, see my own website by doing a "Bing" search for my last name "Rapalje". Look for my website "Rapalje Homepage" near the top of the search list. On my webpage, look for "Basic, Intermediate and College Algebra: One Step at a Time." Select "College Algebra" and look in "Chapter 4" for "4.01 Definition of Logarithms" This is my own non-traditional explanation that my own students ALL found easier to understand than the one given in traditional textbooks. See also the corresponding section in my "MATH IN LIVING COLOR" pages in which I solved a lot of these types of problems in COLOR!! In addition, I have 2 two-hour videos from my own classes a few years ago that you can see for free on my website. To see the videos, look on my Homepage for "Rapalje Videos in Living Color," and choose "College Algebra".

R^2

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus