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Daca a+3=2xb=cx3=18 afla suma numerelor a,b si c

Răspuns :

aca a+3=2xb=cx3=18,aflati suma numerelor a,b si c.
3+3=2*3=6*3=18
3c=18
c=18:3=6
2b=3x6
b=18:2=9
a+3=18
a=18-3=15
15+9+6=30