Найдем х.

Б) (х + 2 4/19) - 4 7/19 = 1 6/19;

x + 2 4/19 - 4 7/19 = 1 6/19;

x - 2 - 3/19 = 1 6/19;

x = 1 + 2 + 6/19 + 3/19;

x = 3 9/19.