求不等式组x-3(x-2)>1 2x-1/5≥x+1/2
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求不等式组x-3(x-2)>1 2x-1/5≥x+1/2
求不等式组x-3(x-2)>1 2x-1/5≥x+1/2
求不等式组x-3(x-2)>1 2x-1/5≥x+1/2
x-3(x-2)>1
x-3x+6>1
-2x>-5
x
x-3(x-2)>1 x-3x+6>1 -2x>-5 x<5/2
2x-1/5≥x+1/2 x≥1/2+1/5 x≥7/10
7/10≤x<5/2
x-3x+6>1 X<5/2 2x-1/5≥x+1/2 x≥3/10 并起来就是结果了 两边的不等式移动简化下就可以了