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Cel mai inteligent răspuns!
2014-05-26T15:53:21+03:00
X + x/2 + x/4 = 77
aducem la acelasi numitor
4x + 2x +x = 77 *4
7x = 77*4
x = (77*4) /7
x = 11*4
x = 44
2 5 2