题目下列去括号正确的是（ ）A.x−(4y−2)=x−4y−2x-\left(4y-2\right)=x-4y-2x−(4y−2)=x−4y−2B.−12(4x+3)=−2x+32-\frac{1}{2}(4x+3)=-2x+\frac{3}{2}−21(4x+3)=−2x+23C.x+(y−3)=x+y−3x+\left(y-3\right)=x+y-3x+(y−3)=x+y−3D.x+2(3−y)=x+6−yx+2\left(3-y\right)=x+6-yx+2(3−y)=x+6−y知识点：通分章节：未标注
