Systems word problems: sum and difference

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

1. Two numbers have a sum of 17 and a difference of 1. What are the numbers? Write the larger first, like (9, 4).
2. Two numbers have a sum of 21 and a difference of 9. What are the numbers? Write the larger first, like (9, 4).
3. Two numbers have a sum of 5 and a difference of 3. What are the numbers? Write the larger first, like (9, 4).
4. Two numbers have a sum of 13 and a difference of 3. What are the numbers? Write the larger first, like (9, 4).
5. Two numbers have a sum of 48 and a difference of 2. What are the numbers? Write the larger first, like (9, 4).
6. Two numbers have a sum of 4 and a difference of 2. What are the numbers? Write the larger first, like (9, 4).
7. Two numbers have a sum of 23 and a difference of 17. What are the numbers? Write the larger first, like (9, 4).
8. Two numbers have a sum of 6 and a difference of 4. What are the numbers? Write the larger first, like (9, 4).
9. Two numbers have a sum of 5 and a difference of 1. What are the numbers? Write the larger first, like (9, 4).
10. Two numbers have a sum of 43 and a difference of 19. What are the numbers? Write the larger first, like (9, 4).
11. Two numbers have a sum of 72 and a difference of 16. What are the numbers? Write the larger first, like (9, 4).
12. Two numbers have a sum of 79 and a difference of 13. What are the numbers? Write the larger first, like (9, 4).
13. Two numbers have a sum of 22 and a difference of 18. What are the numbers? Write the larger first, like (9, 4).
14. Two numbers have a sum of 94 and a difference of 24. What are the numbers? Write the larger first, like (9, 4).
15. Two numbers have a sum of 69 and a difference of 51. What are the numbers? Write the larger first, like (9, 4).
16. Two numbers have a sum of 7 and a difference of 3. What are the numbers? Write the larger first, like (9, 4).
17. Two numbers have a sum of 15 and a difference of 1. What are the numbers? Write the larger first, like (9, 4).
18. Two numbers have a sum of 121 and a difference of 111. What are the numbers? Write the larger first, like (9, 4).
19. Two numbers have a sum of 38 and a difference of 32. What are the numbers? Write the larger first, like (9, 4).
20. Two numbers have a sum of 104 and a difference of 98. What are the numbers? Write the larger first, like (9, 4).