Question 323380
[A]={{{(matrix(3,3,1,1,1,1,3,3,2,1,-1))}}}
[x]={{{(matrix(3,1,x,y,z))}}}
[b]={{{(matrix(3,1,4,10,3))}}}
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[A][x]=[b]
[x]=[A]inv[b]
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det[A]={{{-4}}}
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[A]inv={{{(1/-4)*(matrix(3,3,-6,2,0,7,-3,-2,-5,1,2))}}}
[x]={{{(matrix(3,1,1,2,1))}}}