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2014-08-17T20:53:07+03:00
0,(3)=3/9=1/3

0,(6)=6/9=2/3

x-1/3=2/3 * ( x+1/3)  aducem la acelasi numitor

x -1/3 = 2/3 * (3x+1)/3

x-1/3 = (6x+2)/9   aducem la acelasi numitor

9x-3=6x+2

9x-6x =2 +5

3x=7

x= 7/3
1 5 1