Помогите пж |x|=-1 |8+x|=7 |5-x|=0. Created by kostjoriginal. matematika-ru

Помогите пж |x|=-1 |8+x|=7 |5-x|=0...

July 2022 1 8 Report

Помогите пж
|x|=-1
|8+x|=7
|5-x|=0

Answers & Comments

AaronChesping 1)|x|=-1
модуль не может быть равен отрицательному числу, поэтому в этом уравнении нет корней
|8+x|=7
8+x=7
8+x=-7
x=7-8
x=-7-8
x=-1
x=-15
3)5-x=0
-x=-5
x=5

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