初一3(1-x)大于等于2-5x,x+2/3

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初一3(1-x)大于等于2-5x,x+2/3初一3(1-x)大于等于2-5x,x+2/3初一3(1-x)大于等于2-5x,x+2/33(1-x)大于等于2-5x3-3x>=2-5x2x>=-1x>=-

初一3(1-x)大于等于2-5x,x+2/3
初一3(1-x)大于等于2-5x,x+2/3

初一3(1-x)大于等于2-5x,x+2/3
3(1-x)大于等于2-5x
3-3x>=2-5x
2x>=-1
x>=-1/2
x+2/35/2
所以
x>5/2