№743
1 пример=19,2а-21,6b-20,5b-24,6c+7,6a-13,3c=26,8a-42,1b-37,9c
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№743
1 пример=19,2а-21,6b-20,5b-24,6c+7,6a-13,3c=26,8a-42,1b-37,9c