00:01
Okay, so it looks like we're trying to solve for our matrix a here.
00:03
So the first thing i'm going to do is go ahead and distribute through with the 5 at the scalar multiplication.
00:10
So this will get us 30 in the top, and then in the denominator there, i'm going to get 35.
00:16
And then over here i have this equals negative 3a.
00:19
I'm going to do the same thing here.
00:20
So i have minus.
00:21
And then 4 times 4 is 16 and 4 times negative 2 is negative 8.
00:25
So now i'm going to move things over to each side.
00:28
So 3 i'm going to move over by adding.
00:29
So that will give me 5a is equal to.
00:32
And then i'm going to do this negative.
00:35
Let's kind of distribute the negative in there as well.
00:37
So that would be a positive 16 or a negative 16 positive 8.
00:41
And i'm going to add to it this other one...