Answer:
-12y+48
Step-by-step explanation:
6(7-3y)+6(y+1)
42-18y+6y+6
-12y+42+6
y=-3x-5
The second one
B c A
Because B has c and a, which is part of A (A={a, b, c})
your factors are
(x-7) and (2x+3)