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15 March, 14:47

The sum of two numbers is 20. The greater number is 4 more than the lesser number. What are the two numbers?

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  1. 15 March, 14:59
    0
    X=y+4

    x+y=20

    now substitute the x for (y+4) in the second equation

    (y+4) + y=20

    2y+4=20

    2y=16

    y=8

    now substitute 8 for y in the first equation

    x=8+4

    x=12

    so y=8 and x=12
  2. 15 March, 15:11
    0
    The two numbers would be 12 and 8 because 12 is 4 more than 8 and so the sum of 12 and 8 is 20.
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