Question 1102882
{{{-8x-8y=-16}}}
{{{x+y=2}}}
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{{{6x-9y=-108}}}
{{{2x-3y=-36}}}
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{{{A=(matrix(2,2,
1,1,
2,-3))}}}
{{{abs(A)=-5}}}
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{{{A[x]=(matrix(2,2,
2,1,
-36,-3))}}}
{{{abs(A[x])=30}}}
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{{{A[y]=(matrix(2,2,
1,2,
2,-36))}}}
{{{abs(A[y])=-40}}}
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{{{x=abs(A[x])/abs(A)=30/(-5)=-6}}}
{{{y=abs(A[y])/abs(A)=(-40)/(-5)=8}}}