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EkaterinaKau
@EkaterinaKau
October 2021
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Задание на фото)Пожалуйста, выполните))))
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haraken
1.x+y+z=6
2.x-y+z=4
3.z+y-x=0
Решение :
z = x-y (3)
x = 4+y-z (2)
Подставляю
4+y-z+y-x+y=6
y-z+y-4-y+z+y=2
2y=6
>>y=3<<
z = x - y
z = 4 + y - z - y
2z = 4
>>z = 2<<
z = x - y
=> x= z + y
>>x = 5<<
ОТВЕТ : x = 5 ; y = 3 ; z = 2
2 votes
Thanks 1
EkaterinaKau
Спасибо)))
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Answers & Comments
2.x-y+z=4
3.z+y-x=0
Решение :
z = x-y (3)
x = 4+y-z (2)
Подставляю
4+y-z+y-x+y=6
y-z+y-4-y+z+y=2
2y=6
>>y=3<<
z = x - y
z = 4 + y - z - y
2z = 4
>>z = 2<<
z = x - y
=> x= z + y
>>x = 5<<
ОТВЕТ : x = 5 ; y = 3 ; z = 2