SOLUTION: Please help me solve this: {{{7^(a+4)=115}}}

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Question 134995: Please help me solve this:
7%5E%28a%2B4%29=115
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
7^(a+4)=115
Take the log of both sides to get:
(a+4)log7 = log115
a+4 = [log115/log7]
a+4 = 1.7415
a = -2.2585
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Cheers,
Stan H.