Решение:
- \( 53x - 20x - 24 = 251 \)
\( 33x = 251 + 24 \)
\( 33x = 275 \)
\( x = \frac{275}{33} \)
\( x = \frac{25}{3} \) - \( (17x - 3x) : 17 = 364 \)
\( 14x : 17 = 364 \)
\( 14x = 364 \cdot 17 \)
\( 14x = 6188 \)
\( x = \frac{6188}{14} \)
\( x = 442 \)
Ответ: x = 25/3; x = 442.