124.2: (98 - (8x+76.52)) = 23

Найдем корень уравнения.

124.2 / (98 - (8 * x + 76.52)) = 23;

Умножим значения накрест.

23 * (98 - (8 * x + 76.52)) = 124,2;

98 - (8 * x + 76.52) = 124.2/23;

98 - (8 * x + 76.52) = 5.4;

Раскроем скобки.

98 - 8 * x - 76.52 = 5.4;

(98 - 76.52) - 8 * x = 5.4;

21.48 - 8 * x = 5.4;

-8 * x = 5.4 - 21.48;

8 * x = 21.48 - 5.4;

8 * x = 16.08;

x = 16.08/8;

x = 2.01.