以下哪项陈述是相同的？(A)x-=x+4(B)x=x+4-x(C)x=x-(x+4)

以下哪项陈述是相同的？(A)x-=x+4(B)x=x+4-x(C)x=x-(x+4)
A.(A)and(B)arethesame
B.(A)and(C)arethesame
C.(B)and(C)arethesame
D.(A),(B),and(C)arethesame
正确答案：(A)and(C)arethesame