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x2y + 2 = x + 2yz
y2z + 2 = y + 2zx
z2x + 2 = z + 2xy
Aflaţi variabilele.
Mulţumesc anticipat!


Răspuns :

x2y +2 =x+2yz
100×x +20×y +2=x+200 +10×y+z
200-100x+20+y=10y+2-z
100 (2-x)+y=10 (2-y)+2-z