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Arabela a cumparat bomboane.Daca ar imparti colegilor cate 5 bomboane,2colegi ar ramane fara bomboane,daca ar imparti cate 4,atunci ii mai raman 17 bomboane.Cate bomboane a cumparatArabela si cati colegi are?

Răspuns :

x=nr colegi
5(x-2)=4x+17
5x-10=4x+17
x=27 colegi
4x27+17=125 bomboane