-(2m-3)
16a-8(3b+4c)
-(5m+n)-7(a-3b)
-8(3a-2ab+4)
n-3(4-2m)
t+3/2(12-9u)
-2/1(x+y)+4/1(p+q)
4(m+p)-7(n-2p)
-2n-(3n-1)
-3(2s-5)+6s
3(-ab+2a)-(3a-b)
3(xy-2z)+(-xy+3z)
a-(5a-3b)+(2b-a)
1-(2a-1)-(3a+3)
14(abc-2a)+3(6a-2abc)
-4(pq+pr)+(4pq+pr)