Question

[Liên Nguyễn]

Rút gọn 

|x+3|+|x+5|-|x+1/2|+|7-x|

Giup mk tim cho cần gấp😗😗

Answer 1

[wattif]

|x+3|+|x+5|-|x+1/2|+|7-x|

TH1: -x-3-x-5+x-1/2+7-x

    = -2x-3/2

TH2: -x-3-x-5+x-1/2+x-7

   = 0-31/2

=-31/2