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ajutor problema 434

Ajutor Problema 434 class=

Răspuns :

D-12=C
D+19=V
D+C+V=100
D+D-12+D+19=100
3D=100-19+12
3D=93
D=93÷3
D=31
C=D-12
C=31-12
C=19
V=D+19
V=31+19
V=50
D+C+V=31+19+59=100 MAGNETI