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Daca x/y =2/3 calculati 7x/7x+y.

Daca Xy 23 Calculati 7x7xy class=

Răspuns :

x/y = 2/3    x/(x+y) = 2/(3+2)
7x/y = 14/3
7x/(y+7x) = 14/(3+14)
7x/(7x+y) = 14/17