问题
填空题
若x=-3是方程x-a=6的解，则a=______．
答案
把x=-3代入方程得：-3-a=6，
解得：a=-9．
故答案是：-9．
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若x=-3是方程x-a=6的解，则a=______．
把x=-3代入方程得：-3-a=6，
解得：a=-9．
故答案是：-9．
| 完形填空。 | |||
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