Question 924368
{{{-x+y=-1}}}
{{{y-z=4}}}
{{{x+z=-1}}}
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{{{A=(matrix(3,3,-1,1,0,0,1,-1,1,0,1))}}}
{{{abs(A)=-2}}}
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{{{A[x]=(matrix(3,3,-1,1,0,4,1,-1,-1,0,1))}}}
{{{abs(A[x])=-4}}}
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{{{A[y]=(matrix(3,3,-1,-1,0,0,4,-1,1,-1,1))}}}
{{{abs(A[y])=-2}}}
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{{{A[z]=(matrix(3,3,-1,1,-1,0,1,4,1,0,-1))}}}
{{{abs(A[z])=6}}}
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{{{x=abs(A[x])/abs(A)=(-4)/(-2)=2}}}
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{{{y=abs(A[y])/abs(A)=(-2)/(-2)=1}}}
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{{{z=abs(A[z])/abs(A)=(6)/(-2)=-3}}}
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