SOLUTION: 0 0 2 0 0 1 X 1 1 1 = 3 4 3

You can put this solution on YOUR website!
0 0 2 3
0 0 1 X = 4
1 1 1 3
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There is no solution.
The coefficient matrix is singular,i.e. it's determinant is zero.
That means two or more of the equations represented by the matrices
are linearly dependent.
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Cheers,
Stan H.