Simplify combining like terms:
(i) 21b − 32 + 7b − 20b
(ii) − z
2 + 13z
2 − 5z + 7z
3 − 15z(iii) p − (p − q) − q − (q − p)
Answers
Answered by
1
Answer:
2
Step-by-step explanation:
Similar questions