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MonstrJam
@MonstrJam
June 2022
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Решите систему уравнений способом сложение(ответ сфотографировать и отослать в коментарии).
6y+x=20
3y+3x=15
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ShirokovP
Verified answer
x + 6y = 20 /*(-3)
3x + 3y = 15
- 3x - 18y = - 60
3x + 3y = 15
---------------------------- +
- 15y = - 45
y = 3
x = 20 - 6y = 20 - 6*3 = 20 - 18 = 2
Ответ
(2; 3)
2 votes
Thanks 1
MonstrJam
Спасибо огромное
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Answers & Comments
Verified answer
x + 6y = 20 /*(-3)3x + 3y = 15
- 3x - 18y = - 60
3x + 3y = 15
---------------------------- +
- 15y = - 45
y = 3
x = 20 - 6y = 20 - 6*3 = 20 - 18 = 2
Ответ
(2; 3)