Could use some help please 2x+y=-4 -3y=2x+12

Question

Could use some help please
2x+y=-4
-3y=2x+12

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Huyền Thanh 3 months 2021-09-02T04:32:01+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-02T04:33:03+00:00

    Answer:

    Let

    2x+y=-4——(1)

    -3y=2x+12

    2x+3y=-12—-(2)

    Deduct eqt 1 from 2

    (2x+3y=-12)

    -(2x+y=-4)

    2y=-8

    y=-4

    Put y=-4 into eqt 1

    2x-4=-8

    2x=-8+4

    2x=-4

    Divide both sides by 2

    x=-2

    :. x,y= -2,-4

    Step-by-step explanation:

    0
    2021-09-02T04:33:15+00:00

    Answer: 3y=12−2x 3 y = 12 – 2 x

    Step-by-step explanation:

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