若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0
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若实数x,y满足不等式组
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![若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0](/uploads/image/z/3041237-29-7.jpg?t=%E8%8B%A5%E5%AE%9E%E6%95%B0x%EF%BC%8Cy%E6%BB%A1%E8%B6%B3%E4%B8%8D%E7%AD%89%E5%BC%8F%E7%BB%84x-y%2B1%E2%89%A50x%2By-1%E2%89%A40y%E2%89%A50)
![](http://img.wesiedu.com/upload/7/b7/7b7f850857b306298a58be709120f9f2.jpg)
将z的值转化为直线z=2x+y在y轴上的截距,
当直线z=2x+y经过点A(1,0)时,z最大,
最大值为:2.
故答案为:2.
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