Question

Вопрос №171913

Answer 1

Ix-1I-4=3

|x-1|=7

x-1=7

x-1=-7

x=8

x=-6

Answer 2

|x-1|-4=3

x-1-4=3

x-5=3

x=3+5

x=8

 

-x+1-4=3

-x-3=3

-x=3+3

x=-6