The sum of numbers is 28. the difference of two numbers is -2. find the numbers​

Question

The sum of numbers is 28. the difference of two numbers is -2. find the numbers​

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Farah 6 months 2021-08-21T22:07:02+00:00 2 Answers 0 views 0

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    0
    2021-08-21T22:08:11+00:00

    I believe 15 and 13. 13-15=-2 and added is 28….?

    0
    2021-08-21T22:08:45+00:00

    Answer:

    x=13 and y=15

    Step-by-step explanation:

    Let the 2 numbers be x and y

    ATQ,

    x+y = 28 —— eqn.1

    x-y=-2 ——– eqn.2

    Adding both the equations:

    x+y=28

    +x-y=-2

    _______

    2x = 26

    Therefore x=13

    Now substituting the value of x in eqn. 1

    x+y=28

    13+y=28

    Therefore y=28-13

    =15

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