Răspuns :
D+S=37
2 (D+S)= 2× 37
2D+2S= 74
Unde D sunt dictionarele si S stilourile
X=dictionar
Y=stilou
X+Y=37=>X=37-Y
X+3Y=83=>37-Y+3Y=83=>2Y=46=>Y=23lei
X+23=37=>X=14
2X+2Y=46+28=74lei (a platit Victor)