5{x+1}大于2{2x+3}+4+3x,化简|2x-1| - |1+2x|
问题描述:
5{x+1}大于2{2x+3}+4+3x,化简|2x-1| - |1+2x|
答
5x+5>4x+6+4+3x
2x所有以:2x-12x+1故:
|2x-1| - |1+2x|
=1-2x+1+2x
=2
答
5x+5>4x+6+4+3x
2xx所以2x-12x+1所以uias=1-2x-(-1-2x)
=1-2x+1+2x
=2