The sum of the digits of a 2-digit number is 15. The number obtained by reversing the
digits is 9 less than the original number. Find the number.
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Step-by-step explanation:
x+y=15___(1)
10y+x=10x=x+y+9
9y-9x=9
y-x=1___(2)
x+y=15
-x+y=1
2y=16
y=8
put value of y in eq 1
x+8=15
x=15-8
x=7
GN=87
I hope it will help you
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