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X+1×2/3=3×1/5
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Răspuns :

Samsunggenius200
x+1·[tex] \frac{2}{3} [/tex]=3·[tex] \frac{1}{5} [/tex]
x+[tex] \frac{2}{3} = \frac{3}{5} [/tex]
x+[tex] \frac{2}{3} - \frac{2}{3} = \frac{3}{5} - \frac{2}{3} [/tex]
x=[tex] \frac{-1}{15} [/tex]