How do you solve #4e^(x - 1) = 64#? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer Konstantinos Michailidis May 18, 2016 We have that #4*e^(x-1)=64# #(4*e^(x-1))/4=64/4# (Divide by 4 both sides) #e^(x-1)=16# #(x-1)*lne=ln16# (Take logarithms in both sides) #(x-1)=4*ln2# (Remember that #16=2^4#) #x=1+4*ln2# Answer link Related questions What is a logarithmic model? How do I use a logarithmic model to solve applications? What is the advantage of a logarithmic model? How does the Richter scale measure magnitude? What is the range of the Richter scale? How do you solve #9^(x-4)=81#? How do you solve #logx+log(x+15)=2#? How do you solve the equation #2 log4(x + 7)-log4(16) = 2#? How do you solve #2 log x^4 = 16#? How do you solve #2+log_3(2x+5)-log_3x=4#? See all questions in Logarithmic Models Impact of this question 3457 views around the world You can reuse this answer Creative Commons License