Combine like terms with positive coefficients

Add the x terms together and the plain numbers together. Write the answer as ax + b.

1. Simplify: 1 + 3x + 2x. Write your answer as ax + b.
2. Simplify: 4 + 2x + 5x. Write your answer as ax + b.
3. Simplify: 3 + 3x + 4x. Write your answer as ax + b.
4. Simplify: 4x + 5 + 3x. Write your answer as ax + b.
5. Simplify: 6 + 8 + x + 3x. Write your answer as ax + b.
6. Simplify: 2 + 8 + 4x + 2x. Write your answer as ax + b.
7. Simplify: 3 + 7x + 8 + 5x. Write your answer as ax + b.
8. Simplify: 8x + 3 + 2 + 5x. Write your answer as ax + b.
9. Simplify: 12x + 2 + 12x + 1. Write your answer as ax + b.
10. Simplify: 10x + 3 + 4x + 8. Write your answer as ax + b.
11. Simplify: 8 + 11 + 3x + 5x. Write your answer as ax + b.
12. Simplify: 2 + 5x + 8x + 9. Write your answer as ax + b.
13. Simplify: 4 + 14x + 16x + 4 + 17x. Write your answer as ax + b.
14. Simplify: 17x + 6 + 10 + 17x + 4x. Write your answer as ax + b.
15. Simplify: 11x + 10 + 13x + 14 + 14x. Write your answer as ax + b.
16. Simplify: 2 + 4x + 8 + 20x + 6x. Write your answer as ax + b.
17. Simplify: 22 + 29 + 2x + 23x + 29 + 3x. Write your answer as ax + b.
18. Simplify: 17x + 5 + 16 + 13x + 14x + 29. Write your answer as ax + b.
19. Simplify: 13x + 26x + 22x + 4 + 20 + 7. Write your answer as ax + b.
20. Simplify: 30 + 14x + 15x + x + 25 + 19. Write your answer as ax + b.