5. Решите уравнение: 1) 29x - 11x = 504; 2) 6x + 25x = 1674; 3) x + 35x = 2808; 4) 7x + 9x + 32 = 272; 5) 5y + 7y - 24 = 204; 6) 24x - 15x + 47 = 1919.

1) 29x - 11x = 504

18x = 504

x = 504 / 18

x = 28

2) 6x + 25x = 1674

31x = 1674

x = 1674 / 31

x = 54

3) x + 35x = 2808

36x = 2808

x = 2808 / 36

x = 78

4) 7x + 9x + 32 = 272

16x + 32 = 272

16x = 272 - 32

16x = 240

x = 240 / 16

x = 15

5) 5y + 7y - 24 = 204

12y - 24 = 204

12y = 204 + 24

12y = 228

y = 228 / 12

y = 19

6) 24x - 15x + 47 = 1919

9x + 47 = 1919

9x = 1919 - 47

9x = 1872

x = 1872 / 9

x = 208