Решите уравнение х-(7целых 5/9-5целых 1/6)=-3,5

x - (7 5/9 - 5 1/6) = -3,5;

x - (7 - 5 + 5/9 - 1/6) = -3,5;

x - (2 + (5 * 2)/(9 * 2) - (1 * 3)/(6 * 3)) = -3,5;

x - (2 + 10/18 - 3/18) = -3,5;

x - (2 + (10 - 3)/18) = -3,5;

x - (2 + 7/18) = -3,5;

x - (2 7/18) = -3,5;

x - 2 7/18 = -3,5;

x = -3,5 + 2 7/18;

x = -3 5/10 + 2 7/18;

x = -3 1/2 + 2 7/18;

x = -3 + 2 - 1/2 + 7/18;

x = -1 - (1 * 9)/(2 * 9) + 7/18;

x = -1 - 9/18 + 7/18;

x = -1 + 7/18 - 9/18;

x = -1 + (7 - 9)/18;

x = -1 - 2/18;

x = -1 - 2/(2 * 9);

x= -1 - 1/9;

x = -1 1/9.

Ответ: х = -1 1/8.