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ALgebra

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the difference between two numbers is 7. there sum is 25. find the numbers

  • ALgebra - ,

    a-b=7 , a=7+b
    a+b=25
    (7+b)+b=25 (Becouse a=7+b)
    7+2b=25
    2b=25-7
    2b=18 Divided with
    b=(18/2)=9

    a=7+b=7+9=16

    a=16 , b=9

    a-b=16-9=7
    a+b=16+9=25

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