x-2y-5a+6=x-(  )A.-2y-5a+6B.2y-5a+6C.2y+5a-6D.2y+5a+6

x-2y-5a+6=x-(  )A.-2y-5a+6B.2y-5a+6C.2y+5a-6D.2y+5a+6

题型:单选题难度:简单来源:不详
x-2y-5a+6=x-(  )
A.-2y-5a+6B.2y-5a+6C.2y+5a-6D.2y+5a+6
答案
x-2y-5a+6=x-(2y+5a-6),故选C.
举一反三
下列运算正确的是(  )
A.2a+3b=5abB.2(2a-b)=4a-b
C.4a-a=3D.-3(x-2)=-3x+6
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