GIUÙP MÌNH VOIWS HÖÙA VOÁT 5* (x+14)/86+(x+15)/65+(x+16)/84+(x+17)/83+(x+16)/4=0

`(x+14)/86+(x+15)/65+(x+16)/84+(x+17)/83+(x+116)/4=0 `( bạn sai chút đề á)

`⇔[(x+14)/86+1]+[(x+15)/85+1]+[(x+16)/84+1]+[(x+17)/83+1]+(x+100)/4=0`

`⇔(x+100)/86+(x+100)/85+(x+100)/84+(x+100)/83+(x+100)/4=0`

`⇔(x+100).(1/86+1/85+1/84+1/83+1/4)=0`

`⇔x+100=0`

`⇔x=-100 `(Thỏa Mãn )