Question 239300
1x+3y-1z=1
-2x-6y+1z=-3
3x+5y-2z=4


D=-4
Dx=-8
Dy=0
Dz=-4

x=-8/-4= 2
y=0/-4= 0
z=-4/-4= 1

*[invoke cramers_rule_3x3 1,3,-1,1,-2,-6, 1,  -3,3,   5,  -2,   4]