Are either of these matrices solvable?

Question

[3, 1, .4, 0] 
[-6, -1, 2, 0] 
[9, 2.5, -.2, 0] 


&&& 


[1, 4, 2, 3] 
[2,5,-1,.5] 
[1,7,7,-.5] 


Can you solve either of these matrix equations?

Answer 1

Given 4*4 matrix is not solveble.

If the matrix represents the linear system ,the algebraic properties of matrices may then be used to  solve the system.

Then we can write the linear systems in the form AX = C

A represents cooefficient matrix.

X represents variable matrix.

C represents Constant matrix.

In this case we can't write variable matrix.