Найдите значение выражения (1+1/6+2 1/4) (6/7-1/9 х)

(1+1/6+2 1/4).96/7-1/9 х) = 6/7-1/9 х+1/7-1/54 х+54/28-1/4 х

- 12/108 х - 2/108 х - 27/108 х=-6/7-1/7-54/28

- 41/108 х = - 82/28

х = - 82/28 : (-41/108)

х = - 82/28 * ( - 108/41)

х = 54/7 = 7 5/7