Предмет: Алгебра, автор: Марвин22

решить систему уравнений

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Автор ответа: elena2028

0

x+120=3y+75
x+25=2y+240

x-3y+120-75=0 (домножаем на -1)
x-2y+25-240=0

x-3y+45=0
y=260

х-(3*260)=-45
х-780=-45
х=-45+780
х=735
Ответ:(735;260)

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