Уравнение 2\5x+5\6=1\6-7\25x

Ответ:

2/5х + 5/6 = 1/6 - 7/25х;

2/5х + 7/25х = 1/6 - 5/6;

2/5 + 7/25 = (2 * 5)/25 + 7/25 = 10/25 + 7/25 = 17/25;

1/6 - 5/6 = (1 - 5)/6 = -4/6 = (-2 * 2)/(3 * 2) = -2/3.

17/25х = -2/3;

х = -2/3 : 17/25;

х = -2/3 * 25/17;

х = (-2 * 25)/(3 * 17);

х = -50/51.

Объяснение: