17-|x-1|=15
|x-1|=17-15
|x-1|=2
Vì |2|=|-2|=2
=> x-1 \(\in\){-2;2}
* x-1=-2
x=-2+1
x=-1
*x-1=2
x=2+1
x=3
Vậy x\(\in\left\{-1;3\right\}\)
17-15=2
=> x-1=2 hoặc x-1=-2
*Nếu x-1=2=>x=2+1=3
*Nếu x-1=-2=>x=-2+1=-1
tick nha bạn
17-lx-1l=15
=>lx-1l=2
=>x-1\(\in\){-2;2}
+)TH1: x-1=-2=>x=-1
+)TH2:x-1=2=>x=3