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REZOLVAREA COMPLETA VA ROG !!
0.(3)x+1[tex] \frac{1}{3} [/tex]x-[1,(3)x-[tex] \frac{2}{3} [/tex]x]=


Răspuns :

x/3+4x/3-(12x/9-2x/3)=x/3+4x/3-4x/3+2x/3=3x/3=x