00:01
Okay, we have another system of equations to solve here with elimination.
00:04
I think we'll eliminate the x's here.
00:07
So multiply the first one by 5 and the second one by negative 3.
00:12
Okay, this will give us 15x plus 40y equals, we use a calculator for 67 times 5, 335.
00:24
Second equation will be negative 15x minus 9y equals negative 1 .5.
00:31
180.
00:32
We can then add these two lines together.
00:36
The x's will cancel for us or eliminate.
00:39
Okay, we have 40 minus 9, which should be 31y.
00:43
And then again, numbers get a little bit big...