SOLUTION: The matrix (-3 x -top- 2 2/3 -bottom-) has no inverse. I need to find the value of x. It'd be great if you could explain it, not just give the answer so t

Question 552939: The matrix (-3 x -top- 2 2/3 -bottom-) has no inverse. I need to find the value of x.

It'd be great if you could explain it, not just give the answer so that I know how to do it in the future. Been trying for hours, some help would be greatly appreciated.
Thanks!
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If the determinant is zero, the matrix does not have and inverse. (And if the matrix does not have and inverse, then determinant is zero).
The determinant of is

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