Решим уравнения:
- a) 1$$\frac{2}{7}$$ + x = 2
x = 2 - 1$$\frac{2}{7}$$
x = 1$$\frac{7}{7}$$ - 1$$\frac{2}{7}$$
x = $$\frac{5}{7}$$.
- б) y + 3$$\frac{2}{5}$$ = 6$$\frac{3}{5}$$
y = 6$$\frac{3}{5}$$ - 3$$\frac{2}{5}$$
y = (6 - 3) + $$\frac{3-2}{5}$$
y = 3$$\frac{1}{5}$$.
Ответ: a) $$\frac{5}{7}$$; б) 3$$\frac{1}{5}$$