已知3(1-X)≤-4X,化简|x+3|-|1-2x|

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已知3(1-X)≤-4X,化简|x+3|-|1-2x|已知3(1-X)≤-4X,化简|x+3|-|1-2x|已知3(1-X)≤-4X,化简|x+3|-|1-2x|3(1-X)≤-4X3-3x≤-4x4

已知3(1-X)≤-4X,化简|x+3|-|1-2x|
已知3(1-X)≤-4X,化简|x+3|-|1-2x|

已知3(1-X)≤-4X,化简|x+3|-|1-2x|
3(1-X)≤-4X
3-3x≤-4x
4x-3x≤-3
x≤-3
∴|x+3|-|1-2x|
=-x-3-1+2x
=x-4