-2(2m-3)

问题描述:

-2(2m-3)
2n-(4-2m)
16a-3(3b-4c)
t-3分之2(24-9v)
-(5m+n)-6(a-3b)
-2分之1(x+y)-4分之1(p-q)

-2(2m-3) = -4m+6
2n-(4-2m) =2n-4+2m
16a-3(3b-4c) =16a-9b+12c
t-3分之2(24-9v) =t-16+6v
-(5m+n)-6(a-3b)=-5m-n-6a+18b
-2分之1(x+y)-4分之1(p-q)=-1/2x-1/2y-1/4p+1/4q