x取哪些整数值时,不等式5x+2>3(x-1)与2分之1x-1≤7-2分之3x都成立
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x取哪些整数值时,不等式5x+2>3(x-1)与2分之1x-1≤7-2分之3x都成立
x取哪些整数值时,不等式5x+2>3(x-1)与2分之1x-1≤7-2分之3x都成立
x取哪些整数值时,不等式5x+2>3(x-1)与2分之1x-1≤7-2分之3x都成立
5x+2>3(x-1)与(x-1)/2≤7-3x/2
即2x>1,x>1/2,与x-1≤14-3x,4x≤15,x≤15/4,得15/4≥x≥1/2