问题 解答题
(1)计算:(-2)0+4×(-
1
2
)=______;
(2)计算:2(x+1)-x=______.
答案

(1)(-2)0+4×(-

1
2
),

=1-2,

=-1;

(2)2(x+1)-x,

=2x+2-x,

=x+2.

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