Ответ:
2/9(15/2-3/2а)+11/5(6-1/2а)
5/3-1/3а+66/5-11/10а
223/15-43/30а
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Ответ:
2/9(15/2-3/2а)+11/5(6-1/2а)
5/3-1/3а+66/5-11/10а
223/15-43/30а