How do you solve #2log(2x) = 1 + loga#? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer Alan N. Aug 15, 2016 #x=sqrt(10a)/2# (Assuming #log = log_10#) Explanation: #2log_10(2x) = 1+log_10 a# #2log_10 2x - log_10 a =1# #2log_10 2x - 2log_10 a^(1/2) =1# #2log_10((2x)/sqrt(a)) =1# #log_10((2x)/sqrt(a)) =1/2# #(2x)/sqrt(a) = 10^(1/2)# #2x=sqrt(10a)# #x=sqrt(10a)/2# 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 3403 views around the world You can reuse this answer Creative Commons License