SOLUTION: I CAN NOT SOLVE THESE AT ALL ! HELP PLEASE! I REALLY NEED THE ANSWERS, PLEASE AND THANKYOU . log(3)5+log(3)X=log(3)10 log(1/7)X=-1 2ln3x+1=5 log(3)0.1+2log(3)x=log(3)2+log(3)5

Question 475611: I CAN NOT SOLVE THESE AT ALL ! HELP PLEASE! I REALLY NEED THE ANSWERS, PLEASE AND THANKYOU .
log(3)5+log(3)X=log(3)10
log(1/7)X=-1
2ln3x+1=5
log(3)0.1+2log(3)x=log(3)2+log(3)5
log(b)9=2
1/4log(2)16+1/2log(2)49=log(2)x
3^n^-2=27
2^2^n=16^-1
4^3^x=10
2^e^x-5=1
these are the answer choices , only one goes for each . PLEASE CAN YOU SOLVE EACH ONE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE !!!!!! I DO NOT KNOW HOW TO DO IT ON A CALCULATOR , IVE TRIED !!!! THANKYOU SO MUCH !
10 , -2 , 14 , 3 , 2.4630 , 0.5537 , 3.2147 , 7 , 5 , 2 , 1.0986 , 4
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Don't do them on a calculator, figure them out.
Shouldn't you be more interested in knowing how to do them than getting the answers?
Maybe that's where you're going wrong.
------------------------------
log(3)5+log(3)X=log(3)10
Adding logs --> multiplying

5x = 10
x = 2
-----------------
log(1/7)X=-1
Is 1/7 the base?
----------------
2ln3x+1=5
2ln(3x) = 4
ln(3x) = 2

x =~ 2.463
---------------
log(3)0.1+2log(3)x=log(3)2+log(3)5
This is similar to the 1st one.
--------------------
log(b)9=2
--> b^2 = 9
b = 3
---------------
1/4log(2)16+1/2log(2)49=log(2)x
Similar to the 1st one.
-------------
3^n^-2=27
It's not clear what this means. Add parentheses.
--------------
2^2^n=16^-1
4^n = 1/16 = 4^-2
n = -2
--------------
4^3^x=10
64^x = 10
x*log(64) = 1
x = 1/log(64)
Use the calculator here.
------------------
2^e^x-5=1
Ambiguous. What's the exponent of e ?
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