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wxmaxima
Richtig:
2*x1-4*x2+5*x3=3 3*x1+3*x2+7*x3=13 4*x1-2*x2-3*x3=-1 x1,x2,x3
Falsch:
2x1-4x2+5x3=3 3x1+3x2+7x3=13 4x1-2x2-3x3=-1 x1,x2,x3