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1/3×+1/3=x-1
Am nevoie de ajuto


Răspuns :

[tex] \frac{1}{3}+ \frac{1}{3}=x-1 \\ \\ \frac{2}{3}= \frac{x}{3} - \frac{3}{3} \\ \\ 2=x-3 \\ 2+3=x \\ \\ x=5[/tex]