00:01
The first step in any problem like this is to distribute.
00:07
Anytime you have distributing, i'm going to start with that.
00:11
So distribute the two and distribute the negative 5.
00:18
Just be careful with that negative.
00:20
That becomes plus 15.
00:22
Now my goal is to move my letters to one side and my numbers to the other.
00:27
So i'm going to use the opposite operation here, but i need to decide if i want to add 6r or add 5r.
00:34
It's much easier if i add 6r because now this will be a positive 1r.
00:41
I would much rather have a positive 1r.
00:43
So my next line, these cancel, give me 0...