1. ## can i add these?

this part of a big problem
do i distribute the 3 first or do i distribute the 4 first?

-3(n-3).4

2. Originally Posted by elfen_lied
this part of a big problem
do i distribute the 3 first or do i distribute the 4 first?

-3(n-3).4
-3(n -3).4

If that is
-3(n -3)(4),
then it does not matter whether you multiply by the -3 first or by the 4 first.

If by the -3 first:
-3(n -3)(4)
= (-3n +9)(4)

If by the 4 first:
-3(n -3)(4)
= -3(4n -12)
= -12n +36 ----------same as above.