Answer:
14. 2
15. 7
16. 3
17. 8
11. 490
12. 9
13. 27
Explanation:
14. 15y = 30 --> y = 30/15 = 2
15. 7t = 49 --> 49/7 = 7
16. 4 + 4x = 16 --> 4x = 16 - 4 = 12 --> x = 12/4 = 3
17. 4x + 2x = 48 --> 6x = 48 --> x = 48/6 = 8
11. r/7 = 70 --> r = 490
12. k/9 = 6 - 5 = 1 --> k = 9
13. b/3 = 9 --> 27
*You may plug in to check :)