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daca a plus b =1450,b plus c=1231,iar a plus c=2242,afla dublul sumei celor trei numere.
Am nevoie de rezultat urgent !


Răspuns :

(a+b)+(b+c)+(a+c)=1450+1231+2242

a+b+b+c+a+c=4923

2a+2b+2c=4923

2(a+b+c)=4923

raspuns=4923

succes la teme! :))
b=1450-1231=219
a=1450-219=1431
c=2242-1431=811
Suma=219+1431+811=1650+811=2461
Suma ori 2=2461ori2=4922