9 * ( x - 7/2 * 4/7 ) = 0
9 * ( x - 2 ) = 0
x - 2 = 0
x = 2
128 * 3/8 = 48 яблонь
128*2/4 = 64 груши
128 - 48 - 64 = 16 вишен
5 3/17 - (4-y)+ 6 8/17 = 9
5 3/17 - 4 + y + 6 8/17 = 9
(5 3/17+6 8/17) + y =9 - 4
11 11/17 + y = 5
y = 5 - 11 11/17
y = 5 - 198/17
y = - 113/7
y = - 6 11/17
<span>ответом будет буква В</span>