Вопрос:

Ответ:

\[2\frac{18}{43} + x = 3\frac{4}{43}\]

\[x = 3\frac{4}{43} - 2\frac{18}{43}\]

\[x = 2\frac{47}{43} - 2\frac{18}{43}\]

\[x = \frac{29}{43}.\]