How to solve 12^r=13 in solving exponential equation with logarithms

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(2) Answers

BettieZumbrunnen

12^r = 13
Take the logarithm of each side of the equation:
r log(12) = log(13)
Divide each side by log(12) :
r = log(13) / log(12) = 1.03221,,, (rounded)