Вопрос:

4. 3y - (5 - y) = 11

Ответ:

4y - 5 = 11
4y = 16
y = 4

5. (7a + 1) - (6a + 3) = 5
10. 15(v + 2) - 30 = 15v
12. 0.4b + 3 = 0.2(3b + 1) - b
13. 6(x - 1) = 9.4 - 1.7x
14. 3.5 - 9a = 2(0.5a - 4)
15. 3(2.4 - 1.1m) = 2.7m + 3.2
16. 3(x - 1) = 2(2 - x) + 6
17. 4(3 - h) - 11 = 7(2h - 5)
18. -3(3y + 4) + 4(2y - 1) = 0
19. 0.3(5x - 7) = 3(0.2x + 3.2)
20. 4(1.2b + 3.7) - 2.8 = 5.2b
21. 0.9(4y - 2) = 0.5(3y - 4) + 4.4
22. 4(0.2x - 7) - 5(0.3x + 6) = 5