00:03
All right, we have a garden.
00:05
It never mentions rectangular, but it does talk about the length and the width and the perimeter.
00:10
I'm going to assume we're talking about a rectangular garden here.
00:14
It tells us that the perimeter is 88 feet.
00:17
Its length is 12 feet greater than its width.
00:20
All right.
00:21
So its length is 12 feet greater than its width.
00:23
So that means i can take the width and add 12 in order to get my length 12 feet greater than the width.
00:30
All right.
00:31
So how do we actually find? our perimeter.
00:35
Well, the perimeter would be equal to two times the length, right? because i have the length there and the length up top as well, plus two times the width.
00:46
So that's an equation for my perimeter.
00:48
So i could use 88 for that is equal to two times the length plus two times the width.
00:55
But i've got these two variables in here.
00:57
Well, that's okay, because i know how to write one in terms of the other.
01:02
So now that's what i'm going to do is rather than two times the width.
01:04
Times l, i'm going to do two times what l is equal to, w plus 12, and then plus 2w is still tagging along.
01:15
All right, so we get 88 is equal to 2w plus, don't forget you have to distribute, so 2 times 12 is 24, and then plus another 2w.
01:25
And add my like terms, so 88 is equal to 4w plus 24.
01:32
Now i'm going to subtract the 24 from both sides...