1. 259 – 3x = 190 2. 14x – 193 = 717
3. 24x + 217 = 529
4. (135 – 31x)2 = 22
5. 18(5x – 14) = 468
6. (241 + 139) * (2x - 247) = 20140
7. 3x: 43 = 3
8. 135: 5x = 3​

Данный ответ представлен фотографией.

259 - 3x = 190

- 3x = 190 - 259

- 3x = - 69

x = 23

14x - 193 = 717

14x = 717 + 193

14x = 910

x = 65

24x + 217 = 529

24x = 529 - 217

24x = 312

x = 13

(135 - 31x) × 2 = 22

270 - 62x = 22

- 62x = 22 - 270

- 62x = - 248

x = 4

18 × (5x - 14) = 468

5x - 14 = 26

5x = 26 + 14

5x = 40

x = 8

(241 + 139) × (2x - 247) = 20140

380 × (2x - 247) = 20140

2x - 247 = 53

2x = 53 + 247

2x = 300

x = 150

3x : 43 = 3

3/43 x = 3

x = 43