Question

1) -3m-2.(3m)=-m-6


2) 5n-8n+3=-3.(7-n)

Answer 1

1) -3m-2(3m)=-m-6
-3m-6m=-m-6
-9m=-m-6
-9m+m=-6
-8m=-6
m=6/8=3/4

2) 5n-8n+3=-3(7-n)
5n-8n+3=-21+3n
-3n+3=-21+3n
-3n-3n=-21-3
-6n=-24
n=-24/-6
n=4