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JakeDark
@JakeDark
August 2022
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2x - 3y = 1
3x + y = 7
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0DenDenDen0
2х-3у=1 у=7-3х
2х-21+9х=1 у=7-3х
11х=22 у=7-3х
х=2 у=1
2 votes
Thanks 2
ryazanova1952
2х-3у=1
3х+у=7, из второго выделим у
у=7-3х
Подставим в первое
2х-(3*(7-3х)=1
2х-21+9х=1
11х=22
х=22:11
х=2
у=7-3*2
у=7-6
у=1
1 votes
Thanks 1
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Answers & Comments
2х-21+9х=1 у=7-3х
11х=22 у=7-3х
х=2 у=1
3х+у=7, из второго выделим у
у=7-3х
Подставим в первое
2х-(3*(7-3х)=1
2х-21+9х=1
11х=22
х=22:11
х=2
у=7-3*2
у=7-6
у=1