Pls cat mai repede va rog dau coroana.Problema cu Alex si Marian.
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x+1=2y => x=2y-1
y+1=x-1
y+1=2y-1-1 => y-2y=-3 => -y=-3 => y=3
x=2*3-1=5
Raspuns x=5, y=3