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kamilaakhmedov
@kamilaakhmedov
July 2022
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решите систему неравенств: 2х-3у=1
{
зх+у=7
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mmb1
Verified answer
2х-3у=1
зх+у=7
-----------------
умножаем второе на 3 и складываем с первым
9x+3y=21
2x-3y+9x+3y=1+21
11x=22
x=2
2*2-3y=1
3y=3
y=1
ответ (2 1)
4 votes
Thanks 1
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Answers & Comments
Verified answer
2х-3у=1зх+у=7
-----------------
умножаем второе на 3 и складываем с первым
9x+3y=21
2x-3y+9x+3y=1+21
11x=22
x=2
2*2-3y=1
3y=3
y=1
ответ (2 1)