00:01
Okay, i'm solving number 58 for my variable z.
00:06
I'm going to start with this negative that's in front of a parentheses.
00:09
That's the same as having negative 1 that needs to be distributed to each term inside the parentheses.
00:16
So for this first step, i'm not doing anything with 3z.
00:20
So i'm just going to rewrite my 3z, and then i'm going to distribute.
00:24
So i'm going to do negative 1 times 4z.
00:28
So negative 1 times 4 is negative 4.
00:30
Keep my variable.
00:33
Then we have negative 1 times negative 2, which is a positive 2.
00:37
And then just going to bring down the equals 9.
00:41
All right, my next step is to combine like terms...