00:03
Okay, so to determine the x coordinate of two intersecting lines, the first thing that you would do is set those lines, those equations for those lines so that they are equal to each other.
00:21
Because we want to find out where the lines intersect.
00:23
We want to know where they are equal to each other.
00:26
Once we've set them equal to each other, we're going to simply solve our equations by consolidating our x's to one side.
00:34
So the first way i could do that is i could subtract 0 .35x on both sides of my equation.
00:46
So my 0 .35x minus my 0 .35x is going to cancel out.
00:52
And on this side, i'm going to be left with just a 40.
00:55
On this side, i have 0 .45 minus 0 .35.
00:59
And i get 0 .10x plus 34.
01:05
Now that i have my x is consolidated to one side, now i want to remove anything that is bothering the x.
01:11
So i'm going to simply subtract 34 from both sides of my equation.
01:16
40 minus 34 is 6, 6 being equal to 0 .10x.
01:22
And the final step to finding the x coordinate would be to divide by 0 .10 on both sides of my equation.
01:33
And i end up with 60 is equal to.....