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angelinkaerina
@angelinkaerina
July 2022
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пожалуйста помогите)) система уравнений
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КлоунПечальный
4х + у = 3
3х- у = 11
у= 3- 4х
3х- ( 3- 4х) = 11
3х- 3+ 4х = 11
7х- 3 = 11
7х= 11+3
7х= 14
х= 14:7
х= 2
у= 3- (4*2)
у= -5
Ответ:(2; -5).
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Answers & Comments
3х- у = 11
у= 3- 4х
3х- ( 3- 4х) = 11
3х- 3+ 4х = 11
7х- 3 = 11
7х= 11+3
7х= 14
х= 14:7
х= 2
у= 3- (4*2)
у= -5
Ответ:(2; -5).