Question 106765
Calculate the determinant of D=-36, Dx=36, Dy=-72, Dz-144
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Then Cramer determined the following:
x = Dx/D , by this I mean the quotient of their determinants
y = Dy/D , same
z = Dz/D , same
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Solution:
x =-1 
y = 2
z = 4

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Cheers,
Stan H.