下列式子正确的是( ) A.x-(y-z)=x-y-z B.-(x-y+z)=-x-y-z C.x+2y-2z=x-2(z+y) D.-a+c+d+b=-(a-b)-(-

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下列式子正确的是()A.x-(y-z)=x-y-zB.-(x-y+z)=-x-y-zC.x+2y-2z=x-2(z+y)D.-a+c+d+b=-(a-b)-(-下列式子正确的是()A.x-(y-z)=

下列式子正确的是( ) A.x-(y-z)=x-y-z B.-(x-y+z)=-x-y-z C.x+2y-2z=x-2(z+y) D.-a+c+d+b=-(a-b)-(-
下列式子正确的是( ) A.x-(y-z)=x-y-z B.-(x-y+z)=-x-y-z C.x+2y-2z=x-2(z+y) D.-a+c+d+b=-(a-b)-(-

下列式子正确的是( ) A.x-(y-z)=x-y-z B.-(x-y+z)=-x-y-z C.x+2y-2z=x-2(z+y) D.-a+c+d+b=-(a-b)-(-
A不正确,正确x-(y-z)=x-y+z
B不正确,-(x-y+z)=-x+y-z
C不正确,正确x+2y-2z=x+2(z-y)
D,应为 -a+c+d+b=-(a-b)+c+d

ABC都错
正确的是(A)x-(y-z)=x-y+z
(B)-(x-y+z)=-x+y-z
(c)x+2y-2z=x-2(z-y)
看来只有D是对的,虽然你的D没写完整

D

D