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Daca a-b=1/3 si x*a-x*b= -5/6, atunci x este

Răspuns :

x*a-x*b=-5/6

x*(a-b)=-5/6

x*1/3= -5/6

x/3=-5/6

x=-5/6 × 3

x=-15/6=-5/2

SUCCES