SOLUTION: Ashley solved the exponential equation 3x+1 = 15 and her work is shown below. What is the first step she did incorrectly? Step 1: log 3x+1 = log15 Step 2: (x + 1)log 3 = log15

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Ashley solved the exponential equation 3x+1 = 15 and her work is shown below. What is the first step she did incorrectly? Step 1: log 3x+1 = log15 Step 2: (x + 1)log 3 = log15       Log On


   

Question 1033613: Ashley solved the exponential equation 3x+1 = 15 and her work is shown below. What is the first step she did incorrectly?
Step 1: log 3x+1 = log15
Step 2: (x + 1)log 3 = log15
Step 3: x + 1 = log 15 over log 3
Step 4: x+1 = 2.708050 over 1.098612
Step 5: x + 1 = 1.418858
Step 6: x = 0.418858
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the exponent?

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
Step 1 is formally correct, but it doesn't lead to the solution of the problem and is not relevant to the solution of the problem.
Regarding the problem solution, this step (Step 1) is irrelevant and is incorrect.