SOLUTION: 5^x/10+1=8 x=?

Question 766237: 5^x/10+1=8
x=?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
5^(x/10)+1=8
5^(x/10)=7
take log of both sides
(x/10)log(5)=log(7)
x/10=log(7)/log(5)
x=10log(7)/log(5)
x≈12.09
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