eddie is thinking of a number between 149,000 and 150,000 his number has a tens digit that is 7 more than its ones digit. The sum of the tens and ones digit is 9 the sum. the hundreds digit is 0 what is eddies number

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  1. unit digit ---- x
    tens digit ---- x+7

    x+x+7 = 9
    2x = 2
    x = 1

    unit digit is 1
    tens digit is 8
    hundred digit is 0

    number must be 149081

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