SOLUTION: Dylan solved the exponential equation 3x+1 = 15 and his work is shown below. What is the first step he did incorrectly? Step 1: log3x+1 = log15 Step 2: 3 log(x + 1) = log15 St

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Dylan solved the exponential equation 3x+1 = 15 and his work is shown below. What is the first step he did incorrectly? Step 1: log3x+1 = log15 Step 2: 3 log(x + 1) = log15 St      Log On


   

Question 976001: Dylan solved the exponential equation 3x+1 = 15 and his work is shown below. What is the first step he did incorrectly?
Step 1: log3x+1 = log15
Step 2: 3 log(x + 1) = log15
Step 3: log(x + 1) = log 15 over 3
Step 4: log(x + 1) = 0.3920304
Step 5: ln[log(x + 1)] = ln0.3920304
Step 6: x + 1 = −0.936415
Step 7: x = −1.936415
Found 2 solutions by Alan3354, Boreal:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Dylan solved the exponential equation 3x+1 = 15 and his work is shown below. What is the first step he did incorrectly?
----------------
3x+1 = 15
3x = 14
x = 14/3
====================
It's not an exponential equation.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Step 1 needs to be clearer log (3x+1) or log (3x) +1
Assuming that was correct, Step 2 is incorrect.
log (x+1)^3= 3 log (x+1)
log (3x+1) can't be broken down.