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Dodo851
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5/3-0,5•x=0,(12)+0,2(13) ma puteti ajuta?

Răspuns :

[tex] \frac{5}{3}- \frac{x}{2}= \frac{12}{99} + \frac{211}{990} \\ \frac{5}{3}- \frac{12}{99}- \frac{211}{990}= \frac{x}{2} \\ \frac{1650-120-211}{990} = \frac{495x}{990} \\ 1319=495x \\ x=2,66(46)[/tex]

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