3(a-2b)=3а-6b
-2(3m-5n+4p)=-6m+10n-8p
(x-7y-3z) (-0.4)=-0,4x+2,8y+1,2z
a-(b-a)=a-b+a=2a-b
-(m-n)-n=-m+n-n=-m
c+(-c+d)=c-c+d=d
3(a-2b)=3а-6b
-2(3m-5n+4p)=-6m+10n-8p
(x-7y-3z) (-0.4)=-0,4x+2,8y+1,2z
a-(b-a)=a-b+a=2a-b
-(m-n)-n=-m+n-n=-m
c+(-c+d)=c-c+d=d
2) -6m+10n-8p
3) -0.4x+2.8y+1.2z
4) b
5) m
6) d