SOLUTION: solve the logarithmic equation 9 ln (9x)=18. What is the exact solution? What is the decimal approximation to the solution? (Rounded to two decimal places as needed)

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: solve the logarithmic equation 9 ln (9x)=18. What is the exact solution? What is the decimal approximation to the solution? (Rounded to two decimal places as needed)      Log On


   

Question 1104529: solve the logarithmic equation 9 ln (9x)=18.
What is the exact solution?
What is the decimal approximation to the solution? (Rounded to two decimal places as needed)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+9%2Aln%28+9x+%29+=+18+
+ln%28+9x+%29+=+2+
Rewrite this as the inverse function:
+e%5E2+=+9x+
+x+=+%281%2F9%29%2Ae%5E2+
---------------------
The approximate solution is:
+x+=+.1111%2A7.3891
+x+=+.820998+
Rounded to 2 decimal places:
+x+=+.82+