Собственная скорость теплохода 40 1/3 км/ч (смешаная дробь) скорость течения 2 1/2 км/ч. Найдите расстояние, которое теплоход за 2,5 часа движения по течению реки и 3 1/4 часа движения против течения

- 0,7X + 2 = 65 
- 0,7X = 65 - 2 
- 0,7X = 63 
X = 63 : ( - 0,7 )
X = - 90
Проверка 
- 0,7 * ( - 90 ) + 2 = 65 
63 + 2 = 65
65 = 65 

2X + 5 = 2 * ( X + 1 ) + 11 
2X + 5 = 2X + 2 + 11 
2X + 5 ≠ 2X + 13 
Нет решений 

3Y - ( Y - 19 ) = 2Y 
3Y - Y + 19 = 2Y 
2Y + 19 ≠ 29
Нет решений 

6 * ( 1 + 5X ) = 5 * ( 1 + 6X ) 
6 + 30X ≠ 5 + 30X 
Нет решений 

0,4X + 3 = 0,2 * ( 3X + 1 ) - X 
0,4X + 3 = 0,6X + 0,2 - X 
0,4X + 3 = - 0,4X + 0,2 
0,4X + 0,4X = 0,2 - 3 
0,8X = - 2,8 
X = - 2,8 : 0,8 
X = - 3,5 
 Проверка 
0,4 * ( - 3,5 ) + 3 = 0,2 * ( 3 * ( - 3,5 ) + 1 ) - ( - 3,5 ) 
- 1,4 + 3 = 0,2 * ( - 10,5 + 1 ) + 3,5 
1,6 = 0,2 * ( - 9,5 ) + 3,5 
1,6 = - 1,9 + 3,5 
1,6 = 1,6 

1.Having been born in this country, I could not help but be fascinated by its folk crafts, life and culture.

2.If you have a problem, deal with it, but don't call a hundred million people to witness.

3.This part of the apartment, by my standards a luxurious part, was occupied when we moved in.

4.It is not the place that paints the person, but the person who paints the place.

5.We are the largest company in the country, and we are an independent company.

6.The third number came up, and I needed the fifth.

7.The Provisional Government was then conducting a secret investigation.