Ответ: 9x-10y=25 17x=85
9x+10y=60 x=5
9×5-10y=25
45-10y=25
-10y=25-45
-10y=-20
y=2 Ответ:(5;2)
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Ответ: 9x-10y=25 17x=85
9x+10y=60 x=5
9×5-10y=25
45-10y=25
-10y=25-45
-10y=-20
y=2 Ответ:(5;2)