2.|x-1|=16
|x-1|=16:2
|x-1|=8
TH1:x-1=8
x=8+1
x=9
TH2:x-1=-8
x=-8+1
x=-7
Vậy x=9;-7
2|x-1|=16
=>|x-1|=16:2
=>|x-1|=8
TH1:x-1=8
=>x=9
TH2:x-1=-8
=>x=-7
2.| x - 1 | = 16
=> | x - 1 | = 16 : 2
=> | x - 1 | = 8
=> x - 1 = 8 hoặc - 8
TH1 : x - 1 = 8 => x = 8 + 1 => x = 9 ( chọn )
TH2 : x - 1 = - 8 => x = - 8 + 1 => x = - 7 ( chọn )
Vậy x = 9 hoặc x = - 7
2.|x-1|=16 => |x-1|=8 =>:
+, x-1= -8 => x=-7
+, x-1=8 => x=9
/x-1/= 16:2
/x-1/=8
=> x-1={-8;8}
=> x={9;-7}