00:02
Given negative x plus 2y equals 2 and 3x plus y equals 15, we can use a graphing utility to graph these equations and solve the system graphically.
00:14
When we do that, we get that the solution is 4, 3.
00:18
And we're going to verify these solutions algebraically.
00:22
So our solution is 4, 3, which means our x value is 4 and our y value is 3.
00:30
So on this first one, negative x plus 2y equals 2.
00:34
I'm going to say negative and my x value is 4 plus 2 times y and my y value is 3 equals 2.
00:41
We get negative 4 plus 6 equals 2.
00:44
Negative 4 plus 6 is 2 equals 2.
00:48
This is a true statement...