SOLUTION: I need help solving this equation: 2(2^2t-5)-4=10 and it says to give approximate answer.. im not real sure how to even start it Thanks

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Question 115041: I need help solving this equation:
2(2^2t-5)-4=10 and it says to give approximate answer.. im not real sure how to even start it
Thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2(2^(2t-5))-4=10
2^(2t-4)= 14
Take the log of both sides to get:
(2t-4)log2 = log 14
2t-4 = [log14]/[log2]
2t-4 = 3.80735...
2t = 7.80735...
t = 3.90368
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Cheers,
Stan H.