Question 317271
[A]={{{(matrix(3,3,1,3,0,1,0,-2,0,3,1))}}}
[x]={{{(matrix(3,1,x,y,z))}}}
[b]={{{(matrix(3,1,6,-1,5))}}}
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det[A]={{{3}}}
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[A]inv={{{(1/3)*(matrix(3,3, 6,-3,-6,-1,1,2,3,-3,-3))}}}
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[x]={{{(matrix(3,1,3,1,2))}}}