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Rezolvati 20supra210+(-65supra210)+3supra210.Repede te rog

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Trombolistul

[tex] \frac{20}{210} + ( - \frac{65}{210}) + \frac{3}{210} = \frac{20}{210} - \frac{65}{210} + \frac{3}{210} = \frac{20 - 65 + 3}{210} = \frac{ - 42}{210} = - \frac{42}{210} ^{(42} = - \frac{1}{5} [/tex]

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