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ponchik265
@ponchik265
August 2021
0
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B)
{4x – 3y = 7,
{5x + 2y = 26;
1
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shadya07
shadya07
4х-3у=7
4х=3у+7
х=(3у+7)/4
подставляем это во второе уравнение
5(3у+7)/4+2у=26, убираем скобки
3,75у+8,75+2у=26
5,75у=17,25
у=3
тогда х=(3*3+7)/4=4
х=4
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