下列各式中成立的是( ) A.a+(-2b+c-3d)=a+2b+c-3d B.
题型:选择题
问题:
下列各式中成立的是( )
A.a+(-2b+c-3d)=a+2b+c-3d
B.a-(-2b+c-3d)=a+2b-c+3d
C.a-2(-2b+c-3d)=a+4b+2c-6d
D.a-2(-2b+c-3d)=a+4b-c+3d
下列各式中成立的是( )
A.a+(-2b+c-3d)=a+2b+c-3d
B.a-(-2b+c-3d)=a+2b-c+3d
C.a-2(-2b+c-3d)=a+4b+2c-6d
D.a-2(-2b+c-3d)=a+4b-c+3d