Question

sum of the digits of a two digit number is 9 when the digits are interchanged and 18 is subtracted from the new number, the resulting number is greater than the original number by 9 what is the two digit number​

Answer 1

Answer:

No.=1 0x+y

x + y =9. (1)

lOy+X-18-9=1 0x+y

-9x+9y=27

-x+y=3. (2)

Add (I)&(2)

2 y=12, y=6

put in (1)

x+6=9

x = 3

No: 36

Answer 2

Answer:

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