x+2y+5z=1
2x+y+z=2
x+2y+2z=3
solve by Cramers rule
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Step-by-step explanation:
x+2y+5z=1
2x+y+z=2
x+2y+2z=3
x(y+2)3(y+2)
(y+2) (x+3)=0
(y-2) (x-3)
y= -2 x= -3
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