14 2/5*(-19/54)*15/38:х=-2 2/31*12 2/5*15/32 срочно

14 2/5*(-19/54)*15/38:х=-2 2/31*12 2/5*15/32  1)14 2/5*(-19/54)=72/5*(-19/54)=36/5*(-19/27)=4/5*(-19/3)=-76/15 2) - 76/15 * 15/38 = - 76/38=-2-2:х-левая часть3) - 2 2/31 * 12 2/5 = - 64/31 * 62/5 = - (64*2)/5 = - 128/5 = - 25 3/5 4) - 128/5 * 15/32 = - (4*3)/1 = - 12  - правая часть уравненияУравнение: - 2 : х = - 12                     х = - 2 : (- 12)                     х = 2/12 = 1/6Проверка: - 2 : 1/6 = - 2 * 6/1 = - 12Ответ: х = 1/6.