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Rezolvati ecuatiile :
a) 0,(x4) in baza 10 =6 supra 11
b) 0,0(x) in baza 10 + 0,1(x) in baza 10 = 0,2(7)
Urgent!!!


Răspuns :

a)  (10x +4)/99 = 6/11      (10x +4)/9 = 6
10x +4 = 54      10x = 50    x = 5   
b)  x/90 + (10 +x -1)/90 = (27-2)/90
x/90 +(9+x)/90 = 25/90
x+9+x = 25  2x = 16    x = 8