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volfxeniya
volfxeniya
13.05.2021 10:20 •  Алгебра

Вот образец ( это не важно можно не смотреть)

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Ответ:
гсооагвгв
гсооагвгв
13.05.2021

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Must Waste More Time...

4,8(58 оценок)
Ответ:
Vauuu
Vauuu
13.05.2021
1) 4х-3у=12
2) 3х+4у=34 из уравнения 2) находим:
    3х=34-4у
     х= (34-4у):3 и это подставим  в 1) уравнение

     4 {(34-4у):3] -3у=12 производим арифмитические действия и получаем
      4(34-4у):3=12+3у
       (136-16у):3=12+3у
        45 1/3-12=5 1/3у+3у
        33 1/3=8 1/3у
у=  33 1/3: 8 1/3=4 примечание   33 1/3  это есть 100:3 соответственно и 8 1/3= 25:3 и 5 1/3 есть16:3
подставляем значение у=4 в уравнение 1)
4х-3*4=12
4х =12+12
х=6  тебе остается сделать проверку ,подставив значения х и у в любое уравнение
4,7(19 оценок)
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