Question

1
9(2+m)
-3(1,5+n)
2,8(3-m)
-1,5(2-n)
4(1,2-m)
1,3(n-5)
2
-2,5a+1,8a+1,5a
3,2b--4,3b-3,2b
1/2c+1/3c+1/6c
1,9b-4,2b-3,1b
7,2a-5a-1,3a
1/3b+1/5b+2/15b