题目内容
下列结论错误的是
[ ]
A.若a = b,则a-c = b-c
B.若a = b,则
C.若x = 2,则x2 = 2x
D.若ax = bx,则a = b
B.若a = b,则
C.若x = 2,则x2 = 2x
D.若ax = bx,则a = b
D
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