2x – 4y = 10 3x + 4y = -5

Question

2x – 4y = 10
3x + 4y = -5

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Phúc Điền 3 months 2021-08-13T20:54:57+00:00 1 Answers 2 views 0

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    2021-08-13T20:56:34+00:00

    Answer:

    x=1 y=-2

    Step-by-step explanation:

    2x-4y=10

    3x+4y=-5

    5x=5

    x=1

    plug in x

    3(1)+4y=-5

    4y=-8

    y=-2

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )