Question

How do you simplify `2/3 (9b - 27)`?

Answer 1

`=color(blue)(6b-18)`

Explanation:

`9b-27` has 9 in common to both terms

`9b-27=color(blue)(9(b-3)`

Rewriting the expression:
`2/3(9b-27) = 18/3(b-3)`

`=6(b-3)`

`=color(blue)(6b-18)`