The sum of two numbers is 5 and  their difference is 9. What are the two  numbers?

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  • Hockey
    Lv 6
    2 months ago

    7

    -2                                 

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  • 2 months ago

    The numbers are 7 and -2

    • Narayanan P
      Lv 5
      2 months agoReport

      7 and -2
      verify 
      sum - > 7 + (-2) = 5
      difference -> 7 - (-2) = 9

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  • 2 months ago

    The two numbers are -2 and 7.

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  • 2 months ago

    (5+9)/2 = 7 and (5-9)/2 = -2

    The two numbers are 7 and -2.

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  • 2 months ago

    The numbers are 7 and -2

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  • David
    Lv 7
    2 months ago

    The numbers are 7 and -2

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  • 2 months ago

    x + y = 5

    x - y = 9

    -------------

    2x = 14

     x = 7 answer//

    x + y = 5

    y = 5 - x

    y = 5 - 7

    y = - 2 answer//

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  • Ian H
    Lv 7
    2 months ago

    Their difference is 9 so they are 

    x and x - 9 

    The sum of those two numbers is 5 

    2x - 9 = 5 

    x = 7 the other is -2 

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  • 2 months ago

    The sum of two numbers is 5:

    x + y = 5

    Their difference is 9:

    x - y = 9

    You have a system of two equations with two unknowns.  I'll solve this with elimination.

    y's coefficients are already opposites so if I add the two equations together I get a third that has one unknown:

    x + y = 5

    x - y = 9

    -----------

    2x = 14

    x = 7

    Now I can solve for y:

    x + y = 5

    7 + y = 5

    y = -2

    Your two numbers are:

    7 and -2

    They add to 5 and subtract to 9.

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  • Andy C
    Lv 7
    2 months ago

    4 and 2.

    JK.

    Think about it, dude...

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