Question 808409
I'll get you started.


log(10+9x)-log(x-1)=2


log[(10+9x)/(x-1)]=2


(10+9x)/(x-1) = 10^2


(10+9x)/(x-1) = 100


10+9x = 100(x-1)


I'll let you finish up. Don't forget to check all possible answers you get.