SOLUTION: Please help me solve this equation:1.- {{{log(8, (1024))=x+3 }}} 2.- {{{log(x, (8))=3}}} 3.- {{{log(5,(.15 * 10^2))=x}}}

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Please help me solve this equation:1.- {{{log(8, (1024))=x+3 }}} 2.- {{{log(x, (8))=3}}} 3.- {{{log(5,(.15 * 10^2))=x}}}      Log On


   

Question 876530: Please help me solve this equation:1.- log%288%2C+%281024%29%29=x%2B3+
2.- log%28x%2C+%288%29%29=3
3.- log%285%2C%28.15+%2A+10%5E2%29%29=x
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Please help me solve this equation:
1.- log%288%2C+%281024%29%29=x%2B3+
8^(x+3)=1024
(x+3)log(8)=log(1024)
x+3=log(1024)/log(8)
x=log(1024)/log(8)-3=0.3333…
...
2.- log%28x%2C+%288%29%29=3
x^3=8=2^3
x=2
..
3.- log%285%2C%28.15+%2A+10%5E2%29%29=x
log%285%2C%2815%29%29=x
5^x=15
x log5=log15
x=log15/log5=1.68