Question

Lesson Review

Directions: Simplify these problems by combining like terms.

1. 9s + 2s - 3s - 6

2. 12t - 4t - 6 + 5t

3. 18r + 13r + 4r - 3r =

4. 21 - 4q + 42r - 16 =

5. 19st - 6s + t =

6. 107 + 107x - x =

7. 15a2 - 12a + a2 - 3a

8. 13t + 14t + t =

9. r + s + rs +2s + rs + s=

10. 5pt - 3p + 4t - 2pt =

11. 13x2 + 3x2 - x =

12. 103c - 5c + 9c =

13. 11q - 4 + 10q - 5q + 9 =

14. 2k - 28k + 3k =

15. 183x + 91x - 23x =

Answer 1

1. 8s-6

2. 13t-6

3. 32r

4. 5-4q+42r

5.no like terms

6. 107-106x

7. 16a2−15a

8. 28t

9. 4s+r+2rs

10. 7pt-3p+4t

11. 26x2−x

12. 107c

13. 16q+9

14. -23k

15. 151x

Explanation:

Answer 2

1. 8s-6
2. 13t-6
3. 32r
4. 5-4q+42r
5.no like terms
6. 107-106x
7. 16a2−15a
8. 28t
9. 4s+r+2rs
10. 7pt-3p+4t
11. 26x2−x
12. 107c
13. 16q+9
14. -23k
15. 151x