SOLUTION: Ok so I have a quiz tomorrow and I'm having a quiz on all these lessons but I mostly don't get all of them because I can't know 4 lessons for just one quiz. My question is what is

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Ok so I have a quiz tomorrow and I'm having a quiz on all these lessons but I mostly don't get all of them because I can't know 4 lessons for just one quiz. My question is what is       Log On


   

Question 1041638: Ok so I have a quiz tomorrow and I'm having a quiz on all these lessons but I mostly don't get all of them because I can't know 4 lessons for just one quiz. My question is what is log x- log 9 =3?
Found 3 solutions by josgarithmetic, MathTherapy, Alan3354:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
log%28%28x%29%29-log%28%289%29%29=3

log%28%28x%29%29=3%2Blog%28%289%29%29

What is your base, b ?
b%5E%283%2Blog%28%289%29%29%29=x

Answer by MathTherapy(10557) About Me  (Show Source):
You can put this solution on YOUR website!

Ok so I have a quiz tomorrow and I'm having a quiz on all these lessons but I mostly don't get all of them because I can't know 4 lessons for just one quiz. My question is what is log x- log 9 =3?
highlight_green%28matrix%281%2C3%2C+x%2C+%22=%22%2C+%229%2C000%22%29%29

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
My question is what is log x- log 9 =3
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The answer to your question is, "It's an equation."
----
If you want to solve for x (you should say that):
log(x) - log(9) =3
log(x/9) = 3
log(x/9) = log(10^3) = log(1000)
x/9 = 1000
x = 9000