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zmirabdullaeva
@zmirabdullaeva
July 2022
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Помогите мне пожалуста с уравнениями, /- модуль числа: 1) /-х-1/=9
2) /2х+13/=0
3)/3х-4/=10
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parus77
Verified answer
1) составляем 2 уравн.
-х-1=9 -(-х-1)=9
-х=9+1 х+1=9
-х=10 х=9-1
х=-10 х=8
2) 2х+13=0
2х=-13
х=-13:2
х=-6,5
3)состав. два уравнения
3х-4=10 -(3х-4)=10
3х=10+4 -3х+4=10
х=14:3 -3х=10-4
х=4 2\3 -3х=6
х=6:(-3)
х=-2
-
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Answers & Comments
Verified answer
1) составляем 2 уравн.-х-1=9 -(-х-1)=9
-х=9+1 х+1=9
-х=10 х=9-1
х=-10 х=8
2) 2х+13=0
2х=-13
х=-13:2
х=-6,5
3)состав. два уравнения
3х-4=10 -(3х-4)=10
3х=10+4 -3х+4=10
х=14:3 -3х=10-4
х=4 2\3 -3х=6
х=6:(-3)
х=-2
-