Hi

Let x and (x+4) represent the unit and ten's digit respectively

Question states***

(x+4) + x = (1/5)[10(x+4) + x] -5

Solving for x

   2x + 4 = (1/5)(11x + 40) - 5

       2x = (1/5)(11x + 40) - 9

      10x = 11x + 40 - 45

       5 = x, the unit digit, the ten digit is 9, the number is 95



CHECKING our Answer***

    14 = 1/5*95 - 5 = 19 - 5 = 14 

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