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sozo007
@sozo007
July 2022
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Решите пажалоста 1-2
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LindSayWoW
Переведи каким способом решить 3 систему
1 votes
Thanks 1
sozo007
Спасибо
parus77
Verified answer
1.) 8(9-2x)=5(2-3x)
72-16x=10-15x
-16x+15x=10-72
-x=-62
x=62
2.) x-2y=2
3x-2y=9
x-2y=2
-3x+2y=-9
-2x=-7
x=7/2
7/2-2y=2
y=3/4
(x,y)=(7/2; 3/4) - Ответ
Проверяем:
7/2-2*3/4=2
3*7/2-2*3/4=9
2=2
9=9
1 votes
Thanks 2
sozo007
Спасибо уже ненада
parus77
ну,хорошо.
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Answers & Comments
Verified answer
1.) 8(9-2x)=5(2-3x)72-16x=10-15x
-16x+15x=10-72
-x=-62
x=62
2.) x-2y=2
3x-2y=9
x-2y=2
-3x+2y=-9
-2x=-7
x=7/2
7/2-2y=2
y=3/4
(x,y)=(7/2; 3/4) - Ответ
Проверяем:
7/2-2*3/4=2
3*7/2-2*3/4=9
2=2
9=9