Systems word problems: one number is a multiple of another

Write two equations for the two unknown numbers, then solve the system.

1. One number is 3 times another number. Their sum is 28. What are the numbers? Write the smaller first, like (3, 12).
2. One number is 5 times another number. Their sum is 48. What are the numbers? Write the smaller first, like (3, 12).
3. One number is 4 times another number. Their sum is 65. What are the numbers? Write the smaller first, like (3, 12).
4. One number is 3 times another number. Their sum is 72. What are the numbers? Write the smaller first, like (3, 12).
5. One number is 2 times another number. Their sum is 24. What are the numbers? Write the smaller first, like (3, 12).
6. One number is 5 times another number. Their sum is 162. What are the numbers? Write the smaller first, like (3, 12).
7. One number is 3 times another number. Their sum is 80. What are the numbers? Write the smaller first, like (3, 12).
8. One number is 3 times another number. Their sum is 76. What are the numbers? Write the smaller first, like (3, 12).
9. One number is 4 times another number. Their sum is 140. What are the numbers? Write the smaller first, like (3, 12).
10. One number is 2 times another number. Their sum is 66. What are the numbers? Write the smaller first, like (3, 12).
11. One number is 3 times another number. Their sum is 192. What are the numbers? Write the smaller first, like (3, 12).
12. One number is 4 times another number. Their sum is 220. What are the numbers? Write the smaller first, like (3, 12).
13. One number is 4 times another number. Their sum is 355. What are the numbers? Write the smaller first, like (3, 12).
14. One number is 2 times another number. Their sum is 63. What are the numbers? Write the smaller first, like (3, 12).
15. One number is 2 times another number. Their sum is 144. What are the numbers? Write the smaller first, like (3, 12).
16. One number is 2 times another number. Their sum is 168. What are the numbers? Write the smaller first, like (3, 12).
17. One number is 4 times another number. Their sum is 465. What are the numbers? Write the smaller first, like (3, 12).
18. One number is 3 times another number. Their sum is 196. What are the numbers? Write the smaller first, like (3, 12).
19. One number is 3 times another number. Their sum is 116. What are the numbers? Write the smaller first, like (3, 12).
20. One number is 2 times another number. Their sum is 321. What are the numbers? Write the smaller first, like (3, 12).