Ответы на вопрос:
А) -к = 6/10+1/10-10/10 -к = -3/10 к = 3/10 б) t = 4/9 + 6/9 - 9/9 t = 1/9 в) х - 5 1/4х = -1 3/8 - 2 3/8 -4 1/4 х = -3 3/8 -17/4 х = - 27/8 х = (-27/8) / (-17/4) х = 27/8 * 17/4 = 459/32 = 14 11/32
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