Решите уравнение
(4/5-k)-1/3=1/6-1/10

(4/5 - k) - 1/3 = 1/6 - 1/10- k = 1/6 - 1/10 + 1/3 - 4/5k = 1/10 + 4/5 - 1/6 - 1/3k = 9/10 - 1/3 = 17/30