根据下列条件列方程并利用等式的性质求解．a的相反数与4的差是5，求a的值．

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上一题下一题 0.0难度选择题更新时间:2019-03-28 12:30:21

解：根据题意得：﹣a﹣4=5．

等式两边同时加上4得：﹣a=9．

等式两边同时除以﹣1得：a=﹣9．

Place	In a(n)____in the east of North America
Time	At about 4：00 p．m．on____
Weather	It was____．
The number of dead people	____
The reason for the accident	The driver drove after____．