若x+y−1+(y+3)2=0,则x-y的值为_.
问题描述:
若
+(y+3)2=0,则x-y的值为______.
x+y−1
答
暂无优质回答,请稍候...
若
+(y+3)2=0,则x-y的值为______.
x+y−1
暂无优质回答,请稍候...