Question 984414
Use Cramer's rule,
{{{A=(matrix(3,3,
1,1,-2,
1,3,2,
1,-3,-2))}}}
{{{abs(A)=16}}}
.
.
.
{{{A[x]=(matrix(3,3,
8,1,-2,
14,3,2,
4,-3,-2))}}}
{{{abs(A[x])=144}}}
.
.
.

{{{A[y]=(matrix(3,3,
1,8,-2,
1,14,2,
1,4,-2))}}}
{{{abs(A[y])=16}}}
.
.
.

{{{A[z]=(matrix(3,3,
1,1,8,
1,3,14,
1,-3,4))}}}
{{{abs(A[z])=16}}}
.
.
.
{{{x=abs(A[x])/abs(A)=144/16=9}}}
{{{y=abs(A[y])/abs(A)=16/16=1}}}
{{{z=abs(A[z])/abs(A)=16/16=1}}}