2|x-1|+3=9怎么解

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2|x-1|+3=9怎么解
2|x-1|+3=9怎么解

2|x-1|+3=9怎么解
2|x-1|=6
|x-1|=3
x-1=3或x-1=-3
x=4或-2

X=4或-2

x=4或-2

|x-1|=3，x-1=3或-3, x=4或者-2.

2|x-1|+3=9
|x-1|=3
x-1=±3
x=4或-2