(Pa sagot po pls with solution po)


1.
a + 2a-7a+ 9a

2. -9x + 8x + 4x - 12x

3. 2.35y-6.9y

4. 5ab+8ab-10ab + ab

5. 18abc + 25abc-63.4abc

6. 45mn-56.4mn-7.55mn

7. 4x³y²-25x²y² - 7x²y² + 13x²y²

8. x'y-21.5x²y + 1.4xy² -7.4x²y

9. 4.5k² p³-7.8k² p² - 2k²p³ + 8.5k² p³

10. h²mn² +0.25h² mn² + 0.75h²mn² + 15p²mn²

11. -2ab² c² + 12ab² c² - 24ab²c²

12. 9p²mn² + 7p²n² - 6p²mn² + 10p²n² + 6p²mn² - 4p²mn²

13. 2.3w²y² + 2.5y² -2.7w² + w²-6.9w²y² + 5.6w²y² + 7.3y ²

14. (a + b)²(a-b) + 12(a + b)²-14(a + b)²(a-b) ²

15. p' (m-n)-(m-n-17p' (m-n)