62.3k views
4 votes
-21(a + 2b) + 14a - 9b
It’s hard I’m only a 7th grader

2 Answers

7 votes

Answer: -7a - 51b

Explanation:

see photo for work

-21(a + 2b) + 14a - 9b It’s hard I’m only a 7th grader-example-1
User Shahbour
by
5.8k points
3 votes

Answer:

-7a-51b

Explanation:

-21(a+2b)+14a-9b

-21a-42b+14a-9b

-21a+14a-42b-9b

-7a-42b-9b

-7a-51b

User Sushant Somani
by
5.8k points