Tìm m để 3 đường thẳng y=2x+5;y=-x+m; y=2-x đồng quy
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Mathematics, 21.06.2019 14:30
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Mathematics, 21.06.2019 22:20
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m
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