When entering your matrices, the format is as follows:
[1,2,3;4,5,6;7,8,9]=
1 2 3
4 5 6
7 8 9
[1;2;3]=
1
2
3
 
To solve for:
x  - 3y + 3z = -4
2x + 3y - z  = 15
4x - 3y - z  = 19

Coefficient matrix = [1,-3,3;2,3,-1;4,-3,-1]
Constants matrix = [-4;15;19]


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