Răspunsuri

  • Utilizator Brainly
2014-09-10T12:33:33+03:00
X=pix
y=carte
z=caiet
x+y=10
y+z=9
z+x=5
2x+2y+2z=24
2(x+y+z)=24
x+y+z=12

10+z=12=>z=2
2+x=5=>x=3
3+y=10=>y=7
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