What is the solution of the system? 5x + 2y = 9 4x−3y=44

Question

What is the solution of the system?
5x + 2y = 9
4x−3y=44

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Thu Nguyệt 1 week 2021-07-21T13:23:56+00:00 1 Answers 2 views 0

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    0
    2021-07-21T13:25:40+00:00

    Answer:

    (5,-8)

    Step-by-step explanation:

    5x+2y=9

    -2y      -2y

    5x=-2y+9

    ^divided that by 5 on both sides

    x=-2/5y+9/5

    4x-3y=44

    4(-2/5y+9/5)-3y=44

    -23/5y+36/5=44

    ^add -36/5 on both sides

    -23/5y=184/5

    ^divded -23/5 on both sides

    y=-8

    x=-2/5(-8)+9/5

    x=5

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