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Вопрос по математике:
N1368.
Выразив переменную у через переменную х, найдите два каких-либо решения уравнения:
1) х+у-3=0
2)х+4у+12=0
3)-2х+у-7=0
N1369
Выразив переменную х через переменную у, найдите два каких-либо решения уравнения:
1)х-5у-3=0
2)2х+7у-10=0
3)4х-у-8=0-
Автор:
chana
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Ответ:
Пошаговое объяснение:
№1368
1)y=3-x Решения: x=1, y=2
2)y=-1/4x-3 Решения: х=4, у=-4
3)y=2x+7 Решения: x=1, y=9
№1369
1)x=5y+3 Решения: y=1, x=8
2)x=5-7/2y Решения: y=2, x=-2
3)x=1/4y+2 Решения: y=4, x=3
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