Răspuns :

Fabianstiopid

12x+17y=266

12x-20y=-104 imultim cu (-1)

{12x+17y=266

+ {-12×+20y=104 , si adunam totul

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37y=370

y=370/37 => y= 10

12x+170=266

12x=266-170

12x=96

x=96/12

x= 8

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