Question

log(4)+log(x)=log(5)-log(x)

Answer 1

use log(a*b) = log(a) + log(b) on the left.
use log(a/b) = log(a) - log(b) on the right.

what equation are you left with?

Answer 2

log(4x)=log (5/x)

Answer 3

since they're logs of the same base, you can just equate
4x = 5/x

this is what you need to solve now..

Answer 4

got it thanks...

Answer 5

yw :)