Question

Решите систему уравнений 2х+3у =440 3х+2у=410

Answer 1

$left { {{2x+3y=440} atop {3x+2y=410}} right. = left { {{6x+9y=1320} atop {-6x-4y=-820}} right. 5y=500 y=100 3x+2*100=450 x=70 (70 100)$

Answer 2

умножаем первое на 3 второе на -2

Answer 3

Сама просто вас

Answer 4

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