-(2m-3)=3-2m
n-3(4-2m)=n+6m-12
16a-8(3b+4c)=16a-24b+32c
2
-
t+3(12-9v)=t-27v+36
-(5m+n)-7(a-3a)=-5m-n-7a+21a=14a-5m-n
1 1
- -
-2(t+y)+4(p+q)=4p+4q-2t-2y
-8(3a-2ab+4)=-24a+16ab-32
4(m+p)-7(n-2q)=4m+4p+14q-7n
-``哥哥姐姐们,教教我初中去括号的怎么做,另外帮我解下题目,只是去括号就行的,
-(2m-3)=3-2m
n-3(4-2m)=n+6m-12
16a-8(3b+4c)=16a-24b+32c
2
-
t+3(12-9v)=t-27v+36
-(5m+n)-7(a-3a)=-5m-n-7a+21a=14a-5m-n
1 1
- -
-2(t+y)+4(p+q)=4p+4q-2t-2y
-8(3a-2ab+4)=-24a+16ab-32
4(m+p)-7(n-2q)=4m+4p+14q-7n