How do you solve log (2x + 4) = log (3x -12)? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer Alan N. Mar 6, 2018 x=16 Explanation: log(2x+4) = log(3x-12) Remember that: loga=logb ->a=b (Assuming the same base) Hence, in this example: 2x+4 = 3x-12 3x-2x = 4+12 x = 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 2642 views around the world You can reuse this answer Creative Commons License