Question

若a-(b-c+d)=a-d+( )

A。b-c B。b+c C。-b+c D。-b-c

Answer 1

a-(b-c+d)=a-d+(c-b )

Answer 2

a-(b-c+d)=a-d+(c-b)

Answer 3

a-(b-c+d)=a-d+(c-b )

Answer 4

a-(b-c+d)=a-d+( c-b)

Answer 5

a-(b-c+d)=a-d+c-b