Question

|x|=9
|x|-4|=4
||2x-4|-2=5

Answer 1

1)|х|=9
х=9, х=-9
2)|х|-4|=4
|х×4|=4
4|х|=4
|х|=1
х=1
х=-1
3)||2х-4|-2=5
|2х-4|=5+2
|2х-4|=7
2х-4=7
2х-4=-7
х=11/2
х=-3/2