已知2x-3>-x试化简|4x-3|-|-1-2x|
问题描述:
已知2x-3>-x试化简|4x-3|-|-1-2x|
答
2x-3>-x
3x>3
x>1
|4x-3|-|-1-2x|
=4x-3-(1+2x)
=4x-3-2x-1
=2x-4