6(-3-4y)
-18-24y
(Multiply 6 by both numbers)
The result follows directly from properties of modular arithmetic:

That is,

means we can write
for some integer
. Then

and taken mod 12, the first term goes away, so

etc
Answer:
21sq
Step-by-step explanation:
multiply the l times the w which would be 3x7 and get 21.