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OpenStudy (anonymous):
3^5x+7 = 9 solve for x
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OpenStudy (gorv):
subtract 7 from both side
OpenStudy (gorv):
3^5x=9-7=2 3^5x=2
OpenStudy (gorv):
now take log both side
OpenStudy (gorv):
log(3^5x)=log2 5x*log3=log2
OpenStudy (anonymous):
is it the same using natural log?
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OpenStudy (anonymous):
sorry forgot to include that in problem
OpenStudy (gorv):
yeah naturallog it is
OpenStudy (anonymous):
thanks. how does the answer get to -1? I have -1 as the answer on my worksheet
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