How do you solve 10x+2−12=22 and find any extraneous solutions? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Ratnaker Mehta Jul 22, 2016 The Soln. is x=−0.4685 Explanation: 10x+2−12=22⇒10x+2=12+22=34 ⇒log1010x+2=log1034 ⇒(x+2)log1010=1.5315..................[Using LogTable] ⇒(x+2)⋅1=1.5315 ⇒x+2=1.5315 ⇒x=1.5315−2 ⇒x=−0.4685 is the Soln. 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 log1010? How do I work in log10 in Excel? See all questions in Common Logs Impact of this question 1481 views around the world You can reuse this answer Creative Commons License