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X 6 2 t. X1 12t x2 120-10t. Х1 = 200-50t x2=50 x-? T-?. X1=2t x2=60-4t. X 2t 1 физика.
X1 12t x2 120-10t. Х1 = 200-50t x2=50 x-? T-?. X1=2t x2=60-4t. X 2t 1 физика.

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