1. The problem statement, all variables and given/known data Solve the equation e^x+10e^-x=7 2. Relevant equations Logarithm rules and the natural logarithm 3. The attempt at a solution Not really a calculus question but one i'm lost on nevertheless. I don't know how to go about solving this question at all. My first attempt was to factor out the e^x, but this got me nowhere. I know that this question has two answers (ln2 and ln5), but I cannot seem to figure out how to solve for these answers. Any help would be greatly appreciated, thanks in advance.