Question

digit in tens place of two digit number is twice unit digit. if digit are reverse new number is 18 less than original number. find number

Answer 1

Answer:

42

Step-by-step explanation:

Hi,

Let x represent the unit digit      

10(2x) + x = 10x + 2x + 18

      9x = 18

       x = 2

Number is = 42

Answer 2

Answer is in the attachment...
Were, x is tens & y is units digit...
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