SOLUTION: Determined in each case the value of the variable a)3^x=5 b)ln2x= 27

Algebra ->  Equations -> SOLUTION: Determined in each case the value of the variable a)3^x=5 b)ln2x= 27      Log On


   

Question 1018789: Determined in each case the value of the variable
a)3^x=5
b)ln2x= 27
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a)3^x=5
x*log(3) = log(5)
x = log(5)/log(3) - to any base.
---------------
b)ln(2x)= 27
2x+=+e%5E27
x+=+e%5E27%2F2