va rogg dau coroana si 5 stele daca e complet raspunsul
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Răspuns:
[tex]4(x+2y)=5(2x+y)\\\\4x+8y=10x+5y\\\\8y-5y=10x-4x\\\\3y=6x= > x/y=3/6=1/3= > x .din.y=50[/tex]%