Suppose that x – y = 2 and 2x – 3y = 11. Then x + y =

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Suppose that x – y = 2 and 2x – 3y = 11. Then x + y =

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Yến Oanh 7 months 2021-08-07T12:51:00+00:00 2 Answers 2 views 0

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    0
    2021-08-07T12:52:32+00:00

    Answer:

    x + y = -12

    Step-by-step explanation:

    x – y = 2

    2x – 3y = 11

    -2x +2y = -4

    2x – 3y = 11

    -y = 7

    y  = -7

    x = -5

    x + y = -12

    0
    2021-08-07T12:52:32+00:00

    Answer:

    -12

    Step-by-step explanation:

    x – y = 2

    2x – 3y = 11 so

    2x – 2y = 4 and

    -y = 7 so

    y = -7. That means

    x = -5

    -7 + -5 = -12

    That is your answer, -12

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