Question 925711
{{{3x+4z=5}}}
{{{x+y+z=5}}}
{{{y-2z=0}}}
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{{{A=(matrix(3,3,
3,0,4,
1,1,1,
0,1,-2))}}}
{{{abs(A)=-5}}}
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{{{A[x]=(matrix(3,3,
5,0,4,
5,1,1,
0,1,-2))}}}
{{{abs(A[x])=5}}}
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{{{A[y]=(matrix(3,3,
3,5,-4,
1,5,1,
0,0,-2))}}}
{{{abs(A[y])=-20}}}
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{{{A[z]=(matrix(3,3,
3,0,5,
1,1,5,
0,1,0))}}}
{{{abs(A[z])=-10}}}
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{{{x=abs(A[x])/abs(A)=5/(-5)=-1}}}
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{{{y=abs(A[y])/abs(A)=-20/(-5)=4}}}
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{{{z=abs(A[z])/abs(A)=-10/(-5)=2}}}
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