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kola12341
@kola12341
August 2022
1
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методом полстановки
3х+у=4
{
5х-2у=14
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MizoriesKun
3х+у=4
5х-2у=14
----------------------------
у=4-3х
5х-2*(4-3х)=14
--------------------------
у=4-3х
5х- 8+6х =14
---------------------------
у=4-3х
11х =14+8 ⇒ 11х=22 ⇒
х=2
у=4-3*2=
-2
Ответ : (2 ;-2)
12 votes
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Answers & Comments
5х-2у=14
----------------------------
у=4-3х
5х-2*(4-3х)=14
--------------------------
у=4-3х
5х- 8+6х =14
---------------------------
у=4-3х
11х =14+8 ⇒ 11х=22 ⇒х=2
у=4-3*2=-2
Ответ : (2 ;-2)