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pembuat nol nilai mutlak
2x-1=0
2x=1
x=1/2
interval x<=1/2
ambil x=0
|2x-1|=|-1|
karena -1<=0maka |2X-1|=-(2x-1)
|2x-1|<=5-x
-(2x-1)<=5-x
-2x+1<=5-x
-2x+x<=5-1
x<=4 tidak memenuhi
interval x>=1/2
ambil x=1
|2x-1|=|1|
karena 1>=0 maka |2x-1|=2x-1
2x-1>=5-x
. 2x+x>=5+1
3x >=6
x>=3
jadi jawabannya x>=3