Question

12*Ix-1I=108

Answer 1

12.Ix-1I=108

|x-1|=108:12

|x-1|=9

=>x-1=9 hoặc x-1=-9

*Nếu x-1=9 => x=9+1=10

*Nếu x-1=-9 => x=-9+1=-8

Vậy x=10 hoặc x=-8

tick nha

Answer 2

|x-1|=108:12

|x-1|=9

=>x-1=9  hoặc x-1=-9

x=9+1             x=-9+1

x=10                x=-8

=>x E {10;-8}