Question

Simplify the following: 6a + 3 (2a - 7) -9

Answer 1

-24a-30. This is so because when you distribute you get numbers with like terms which you can then combine into a "simple" answer.

Answer 2

1 Expand

6a+6a−21−9
2 Collect like terms

(6a+6a)+(−21−9)
3 Simplify

12a−30
I hope this helps. :)