Solve the simultaneous equation x + 2y =2 and 2x + 5y = 4​

Question

Solve the simultaneous equation x + 2y =2 and 2x + 5y = 4​

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Amity 4 years 2021-07-19T04:16:29+00:00 2 Answers 21 views 0

Answers ( )

  1. King
    0
    2021-07-19T04:17:57+00:00
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    Answer:

    x=2 y=0

    Step-by-step explanation:

    solve for y

    x+2y=2

    x=2-2y

    2(2-2y)+5y

    4-4y+5y=4

    4+y=4

    y=0

    plug into equation

    2x+5(0)=4

    x=2

    and

    x+2(0)=2

    x=2

  2. vankhanh
    0
    2021-07-19T04:18:22+00:00
    Reply

    Answer:

    (2,0)

    Step-by-step explanation:

       2 (x + 2y) = (2)

       

          2x + 4y = 4

    –    2x + 5y = 4

    -1y = 0

    y = 0

    2x + 5(0) = 4

    2x = 4

    x = 2

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