решите уравнение 2*2/5(5/6-4x)=1*1/5

2 * 2/5 * (5/6 - 4x) = 1 * 1/5 4/5 * (5/6 - 4x) = 1/5 5/6 - 4x = 1/5 : 4/5 5/6 - 4x = 1/5 * 5/4 5/6 - 4x = 5/5 * 1/4 5/6 - 4x = 1 * 1/4 5/6 - 4x = 1/4 4x = 5/6 - 1/4 4x = 10/12 - 3/12 4x = (10 - 3)/12 4x = 7/12 x = 7/12 : 4 x = 7/(12 * 4) x = 7/48 Ответ 7/48