00:01
There's a couple ways you can go about solving this problem here.
00:03
They don't have the same base, so we can't do just put the x -1 is equal to each other, but we can put them into the same log.
00:10
Now, you can put it in log -base 5, you can put it in log -base 4.
00:14
Either word doesn't really matter, and then i'll help us kind of simplify some things down.
00:19
So i'm going to head to use log -based 5.
00:21
So i'll have log -base 5 of 5 to the x -plus 3 is equal to log -base 5 of 4, to the 2x minus 1.
00:30
Again, it doesn't matter which process you wanted to do, which would base 4 is here.
00:35
On the left -hand side, this is one of your properties here.
00:38
If you have log -based 5 of 5, pretty much all you get back is the x plus 3.
00:42
However, here, i'm going to have to bring down that 2x minus 1, and then it will be times log -base 5 of 4...