Question

the sum of the digits of two-digit number is 7. if the number formed by the reversing digit is less than the original number by 27 find the original number

Answer 1

Step-by-step explanation:

x+y=7

10y+x=27+10x+y

9y-9x=27

9x+9y=63

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18y=90

y=5

x=2

original number=25