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## Homework Statement

∫2x/(2x+1)dx## Homework Equations

## The Attempt at a Solution

I know from the web the answer is -x+1/2ln(2x+1)+C, but all I keep seeing for explanations is add and subtract 1 to the numerator and mysteriously you get an answer. I don't get it. Can somebody Please, Please, Please, explain, or point me to a site that helps to explain how to integrate this in detail? I just need something in english, not math language.Thanks