24. 336:(5x+1)=6

Решение:

1. \[ 336 : (5x + 1) = 6 \]
2. \[ 5x + 1 = 336 : 6 \]
3. \[ 5x + 1 = 56 \]
4. \[ 5x = 56 - 1 \]
5. \[ 5x = 55 \]
6. \[ x = 55 : 5 \]
7. \[ x = 11 \]

Ответ: x = 11