已知|x+1|+(y+2)2=0,求x+y的值.
解:∵|x+1|+(y+2)2=0,
∴x+1=0,y+2=0,
解得x=﹣1,y=﹣2,
∴x+y=﹣1﹣2=﹣3.
He was very p____ with his exam results.
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