已知不等式2-(x-5)大于2x-2,化简:|6-2x|-|x-9|,十万火急撒

问题描述:

已知不等式2-(x-5)大于2x-2,化简:|6-2x|-|x-9|,十万火急撒

2-(x-5)大于2x-2
2-x+5>2x-2
-3x>-9
∴x∴原式=6-2x-(9-x)
=6-2x-9+x
=-3-x

2-x+5>2x-2
3x