493,445 views
42 votes
42 votes
Simplify the expression. Hint: Order of Operations, then Combine Like Terms.

3(−2a+8b)−(9b−a).

User Cmd
by
3.0k points

2 Answers

18 votes
18 votes


\\ \sf\bull\longmapsto 3(-2a+8b)-(9b-a)


\\ \sf\bull\longmapsto -6a+24b-9b+a


\\ \sf\bull\longmapsto -6a+a+24b-9b


\\ \sf\bull\longmapsto -5a+15b


\\ \sf\bull\longmapsto 15b-5a

User Abey Tom
by
2.9k points
25 votes
25 votes
Take out of parentathese
(3*2a)+(3*8b)-9b-a
6a+24b-9b-a
Combine like terms
(6a-a)+(24b-9b)
Answer:
5a+15b
User DzNET
by
3.1k points