Question

The sum of the digits of a two-digit number is 7. If 2 is subtracted from the number formed by interchanging the digits, the result is double the original number. Find the original number plz help​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

10x+y is the number

x+y=7

10y+x-2=20x+2y

10y-2y -2=20x-x

8y-2=19x

8y=19x+2

(let y=5,x=2)

8*5=(19*2)+2

40=38+2

therefore x=2,y=5