If possible, solve the following linear systems by Cramer's rule.

Question

2x1 + 4x2 + 6x3 = 14
x1 + 2x3 = 0
2x1 + 3x2 − x3 = 30

Answer 1

I will give you 2 nice youtubes to show how this is done

https://www.youtube.com/watch?v=taBHTo8sviM

She sets it up nicely, but does not actually show how to find the determinant of a 3by3.
This one shows a nice short-cut method to find the determinant, but I must point out that this only works for 3by3 matrix

https://www.youtube.com/watch?v=ROFcVgehEYA