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OpenStudy (anonymous):
Help. 7^3x=9 -> ? I have 3xln7=ln9: Is this correct?
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OpenStudy (anonymous):
if it is \[7^{3x}=9\] then \[x=\frac{\ln(9)}{3\ln(7)}\]
OpenStudy (anonymous):
Exactly... which yields 1.425 right?
OpenStudy (anonymous):
oh idk didn't check it lets wolfram
OpenStudy (anonymous):
not what i got http://www.wolframalpha.com/input/?i=log%289%29%2F%283log%287%29%29
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