What is wrong with my unit in this matrix solving?

[yoohooos]

So, I was trying to solve a simple matrix in Mathcad and it gave me error saying that my unit isn't compatible. Could you please advice me which part of my matrix that gave me this error? Thank you very much!

[StuartBruff]

When in doubt, expand matrices, ...

Stuart

[LucMeekes · Accepted solution]

The Unitless 0 in C does not match with the volume that the matrix multiplication gives.

If you set 0 to m^3, or like I did, multiply it with any defined volume, you get your result.

Success!
Luc