Ответы на вопрос:
22 * (17/26х - 3/4) = 5 1/13 17/26х - 3/4 = 5 1/13 : 22 = 66/13 * 1/22 = (3*1)/(13*1) = 3/13 17/26х = 3/13 + 3/4 = 12/52 + 39/52 = 51/52 х = 51/52 : 17/26 = 51/52 * 26/17 = (3*1)/(2*1) = 3/2 х = 1 1/2 = 1,5 пояснения: 5 1/13 = (5*13+1)/13 = 66/13 3/2 = 1 1/2 = 1,5
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