(1)计算:(﹣2)0+(﹣1)2020﹣(
)﹣1;
(2)解方程组:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3d069e61427566b748a7099c2581b3.png)
更新时间:2021-08-21 23:22:58
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb62df827837b03c2a23ae24b6a7e43a.png)
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