当x取那些正整数时,不等式5x+2>3(x-1)与1/2X-1≤7-3/2X都成立
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当x取那些正整数时,不等式5x+2>3(x-1)与1/2X-1≤7-3/2X都成立
当x取那些正整数时,不等式5x+2>3(x-1)与1/2X-1≤7-3/2X都成立
当x取那些正整数时,不等式5x+2>3(x-1)与1/2X-1≤7-3/2X都成立
5x+2>3(x-1)
5x+2>3x-3
2x>-5
∴x>-5/2
1/2X-1≤7-3/2X
1/2x+3/2x
5x+2>3(x-1)
5x+2>3x-3
2x>-5
x>-2.5
1/2x-1≤7-3/2X
2x≤8
x≤4
所以-2.5
x=1、2、3、4
5x+2>3(x-1)
5x-3x>-2-1
2x>-3
x>-3/2
1/2X-1≤7-3/2X
1/2x+3/2x≤7+1
2x≤8
x≤4
-1,0,1,2,3,4