Вариант 2: 4. Решите уравнение: a) \(8\frac{6}{19} - x = 5\frac{3}{19}\) b) \(x + 3\frac{6}{7} = 8\frac{3}{7}\)

Вариант 2

4. Решите уравнение:

• a) \($8\frac{6}{19}-x=5\frac{3}{19}$\)

\( x = 8\frac{6}{19} - 5\frac{3}{19} \)
\( x = (8-5) + (\frac{6}{19}-\frac{3}{19}) \)
\( x = 3 + \frac{3}{19} \)
\( x = 3\frac{3}{19} \)

• б) \($x+3\frac{6}{7}=8\frac{3}{7}$\)

\( x = 8\frac{3}{7} - 3\frac{6}{7} \)
\( x = 7\frac{10}{7} - 3\frac{6}{7} \)
\( x = (7-3) + (\frac{10}{7}-\frac{6}{7}) \)
\( x = 4 + \frac{4}{7} \)
\( x = 4\frac{4}{7} \)