SOLUTION: log7 ( 德 + 40) = 2; w = ___________ ___

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Question 865906:
log7 ( 德 + 40) = 2; w = _______________
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
log7 ( 德 + 40) = 2
the law of logarithms says if y = log base b (x), then x = b^y
w/4 + 40 = 7^2
w/4 + 40 = 49
w/4 = 9
w = 36