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OpenStudy (anonymous):
Solve the equation: 8^x=20
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OpenStudy (mimi_x3):
\[x = \frac{\ln20}{\ln8}=.. \]
OpenStudy (anonymous):
\[\ln (8^x)=\ln20\rightarrow x.\ln8=\ln20 \rightarrow x=(\ln20)/(\ln8)\]
OpenStudy (anonymous):
Do all of these answers get me the same thing??? Haha
OpenStudy (anonymous):
Also, I need help on 7^3x=18
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