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13 July, 22:29

Find two numbers that have the sum of 77.95 and a difference of 30.61

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  1. 13 July, 23:37
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    X+y=77.95

    x-y=30.61

    x+x+y-y=108.56

    2x=108.56 (divide by 2 both sides of the equation)

    x=54.2

    y=77.95-x=77.95-54.2=23.67

    y=23.67

    answer: they are 54.2 and 23.67
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