Cristi are cateva baloane rosii si de 4ori mai multe baloane albastre.Cate baloane de fiecare fel are cristi,daca in total are 20 de baloane? va multumesc
Cristi = x baloane rosii + X x 4 baloane albastre x baloane rosii + X x 4 baloane albastre = 20 x + 4x =20 5x = 20 x = 20 : 5 x = 4 4 baloane rosii 4 x 4 =16 baloane albastre
