Question 200918: 3^x -4=2
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! 3^x -4 =2
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3^x = 6
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take log both sides
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log(3^x) =log 6
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or ,,,,,,x log 3 = log 6
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x= log 6 / log 3
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x= 1.631
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check,,,,,,3^(1.631) =6,,,,,ok
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if problem was ,,,,,3^(x-4) = 2
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(x-4) log 3 = log 2
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x-4 = log2/log3 = .631
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x= 4.631
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check
3^(4.631-4) =2,,,,, ok
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