4x – 2y = -8 y = 2x + 4 Need help show work

Question

4x – 2y = -8
y = 2x + 4
Need help show work

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Nick 2 weeks 2021-07-19T06:09:23+00:00 1 Answers 3 views 0

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    2021-07-19T06:10:56+00:00

    Answer:

    4x – 2y = -8——–equation 1

    y = 2x + 4

    or, -2x+y=4———equation 2

    multiply equation 2 by 2 and solving equation 1and2 we get,

    4x – 2y = -8

    -4x+2y=8

    —————=

    impossible

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