How do you solve 4 ^ (4x-6) = 39? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer Bdub Apr 21, 2016 x=1/4 (ln39/ln4 +6)~~2.16 Explanation: ln4^(4x-6)=ln39 (4x-6)ln4=ln39 4x-6=ln39/ln4 4x=ln39/ln4 +6 x=1/4 (ln39/ln4 +6)~~2.16 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 1299 views around the world You can reuse this answer Creative Commons License