Решите уравнение 1) 5 11|14x-8|15=5|21 8) 48: (3 4|5 х-25) = 1 1|2

1) 5 11/14x - 8/15 = 5/21.

(5 * 14 + 11) / 14x = 5/21 + 8/15.

81/14x = (5 * 10) / 210 + (8 * 14) / 210.

81/14x = 50/210 + 112/210.

81/14x = (50 + 112) / 210.

81/14x = 162/210.

x = 162/210 : 81/14,

х = 162/210 * 14/81,

х = 2/15,

Ответ: х = 2/15.

8) 48 : (3 4/5 х - 25) = 1 1/2.

48 : ((3 * 5 + 4) / 5 х - 25) = (1 * 2 + 1) / 2,

48 : (19/5 х - 25) = 3/2,

19/5 х - 25 = 48 : 3/2,

19/5 х - 25 = 48 * 2/3,

19/5 х - 25 = 32,

19/5 х = 32 + 25,

19/5 х = 57,

х = 57 : 19/5,

х = 57 * 5/19,

х = 15,

Ответ: х = 15.