则x<2a-b,x>(-3a+5b)/2
则(-3a+5b)/2
2a-b=6
则-3a+5b=-2①
2a-b=6②
①+②,得-a+4b=4
则a-4b=-4
已知不等式x-2a+b0的解集为-1
已知不等式x-2a+b<0,2x+3a-5b>0的解集为-1
其他人气：595 ℃时间：2020-03-24 01:06:16
优质解答
x-2a+b<0,2x+3a-5b>0
则x<2a-b,x>(-3a+5b)/2
则(-3a+5b)/2
2a-b=6
则-3a+5b=-2①
2a-b=6②
①+②,得-a+4b=4
则a-4b=-4
则x<2a-b,x>(-3a+5b)/2
则(-3a+5b)/2
2a-b=6
则-3a+5b=-2①
2a-b=6②
①+②,得-a+4b=4
则a-4b=-4
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