номер 530...(4,5,6,7,8,9).... Решите уравнение...х -37 17/18=15 16/45 ... х -33 21/25=42 17/35... найдите значение суммы.. 4 3/5 + 2 5/7 + 5 9/35.... 1 2/3 +6 4/15 +8 17/45..очень нужно пожалуиста
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