Question #082ad

1 Answer
Aug 31, 2017

#x=9e^2+3#

Explanation:

Condense the logarithms using the rules:

  • #log(A^B)=Blog(A)#
  • #log(A)-log(B)=log(A/B)#

Then

#ln(x-3)-2ln(3)=2#

#ln(x-3)-ln(3^2)=2#

#ln((x-3)/3^2)=2#

Rewrite by exponentiating both sides with base #e# (that is, undo the logarithm):

#(x-3)/9=e^2#

From here, solving for #x# is simple:

#x=9e^2+3#