Tolongg bantuin yaa!!! Thanks

13. x + 8 = 15, x = 7
14. x + 5 = -12, x = -17
15. x + 16 = 7, x = -9
16. x - 9 = 10, x = 19
17. x - 14 = 18, x = 32
18. y - 27 = -18, y = 9
19. 3y = 2y - 18, y = -18
20. 4y = 5y + 10, y = -10
21. 7y + 12 = 6y, y = -12
22. 8y - 15 = 9y, y = -15

Semoga membantu ^-^