How do you solve log_12x=1/2log_12 9+1/3log_12 27? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Shwetank Mauria Feb 18, 2017 x=9 Explanation: log_12x=1/2log_12 9+1/3log_12 27 = log_12 (9^(1/2)xx27^(1/3)) Hence x=9^(1/2)xx27^(1/3) = (3^2)^(1/2)xx(3^3)^(1/3) = 3^((2xx1/2))xx3^((3xx1/3)) = 3^1xx3^1 = 3xx3=9 Answer link Related questions What is the common logarithm of 10? How do I find the common logarithm of a number? What is a common logarithm or common log? What are common mistakes students make with common log? How do I find the common logarithm of 589,000? How do I find the number whose common logarithm is 2.6025? What is the common logarithm of 54.29? What is the value of the common logarithm log 10,000? What is log_10 10? How do I work in log_10 in Excel? See all questions in Common Logs Impact of this question 2421 views around the world You can reuse this answer Creative Commons License