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The sum of 2 integers is 14, Their difference is -24, what are the two integers?

This has been killin me.

11 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    x+y = 14

    x-y = -24

    2x = -10

    x = -5

    -5 + y = 14

    y = 19

  • Kemmy
    Lv 6
    1 decade ago

    Let the integers be x and y.

    x+y = 14 ---(1)

    x-y = -24 ---(2)

    (1)+(2):

    2x = -10

    x = -5

    Sub x=-5 into (1),

    x+y = 14

    -5 + y = 14

    y = 14+5

    y = 19

    The two integers are -5 and 19.

  • 1 decade ago

    Let x be one integer and y the other

    x + y = 14

    y = 14 - x

    x - y = -24

    Substute in the value for y

    x - (14 - x) = -24

    2x - 14 = -24

    x = -5

    -5 + y = 14

    y = 19

    .

  • Jon
    Lv 5
    1 decade ago

    x + y = 14; x - y = -24

    let y = 14 - x

    x - (14 - x) = -24

    x - 14 + x = -24

    2x = -24 + 14

    2 x = -10

    x = -5

    to get y

    y = 14 - x

    y = 14 - (-5)

    y = 14 + 5

    y = 19

    Therefore the two integers are - 5 and 19

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  • 1 decade ago

    You need to set up simultaneous equations. For the unknown quantities I shall use x and y.

    From the question we have:

    x + y = 14 (equation 1)

    and

    x - y = -24 (equation 2)

    Add those two together and you get:

    x + y + x - y = -10

    tidy it up:

    2x = -10

    therefore

    x = -5

    plug that into equation 1:

    -5 + y = 14

    Therefore

    y = 19

    so x = -5 and y = 19

  • 1 decade ago

    let the two integers be x and y.

    then x+y=14 ------(1)

    x-y=-24 --------(2)

    (1)+(2) gives,

    2x=14-24=-10

    i.e.x=-5

    Substitute this value in (1) we get,

    -5+y=14

    i.e. y=14+5=19

    Therefor the two integers are -5 and 19.

    (You can check this by substituting values to the equations)

  • Anonymous
    1 decade ago

    x + y = 14 ----- (1)

    x - y = -24 -----(2)

    solve the system of equation

    (1) + (2)

    2x = 14 - 24 = -10

    x = -5

    y = 14 - (-5) = 19

  • 1 decade ago

    x + y = 14

    x - y = -24

    2x = -10

    x = -5

    Since x = -5, y = 19

    Now we will check our numbers

    Sum is 14 Difference is -24

    -5 + 19 = 14, and -5 - 19 = -24

  • 1 decade ago

    let the first be x and the second be y

    x + y = 14

    x - y = -24

    Add both equations together:

    2x=-10

    x = -5

    substitute into both equations:

    -5 + y =14

    y = 19

    -5 - y = -24

    -y = -19

    y = 19

    -5, 19 answer.

  • 1 decade ago

    x + y = 14

    x - y = -24

    2x = -10

    x = -5

    -5 + y = 14

    y = 19

    -5 and 19

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