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anyavladimirova
@anyavladimirova
July 2022
1
5
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x+x/7=-8
x-x/12=11/3
-2x-7=-4x
-x-7=x
(-x-4)*(3x+3)=0
Помогите срочно решить пожалуйста. Заранее спасибо большое .
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гюйс
Verified answer
Х+ х/7= -8
7х+х=-8*7
8х= -8*7 (сокращаем на 8)
х= -7
х- х/12=11/3
12х-х=11*4
11х=11*4
х=4
-2х-7=-4х
4х-2х=7
2х=7
х=3 1/2
-х-7=х
х+х= -7
2х= -7
х= -3,5
(-х-4)(3х+3)=0
-х-4=0
х1= -4
3х+3=0
3(х+1)=0
х+1=0
х2= -1
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Verified answer
Х+ х/7= -87х+х=-8*7
8х= -8*7 (сокращаем на 8)
х= -7
х- х/12=11/3
12х-х=11*4
11х=11*4
х=4
-2х-7=-4х
4х-2х=7
2х=7
х=3 1/2
-х-7=х
х+х= -7
2х= -7
х= -3,5
(-х-4)(3х+3)=0
-х-4=0
х1= -4
3х+3=0
3(х+1)=0
х+1=0
х2= -1